RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy697
(157 letters)
>gnl|CDD|219530 pfam07714, Pkinase_Tyr, Protein tyrosine kinase.
Length = 258
Score = 78.7 bits (195), Expect = 2e-18
Identities = 35/113 (30%), Positives = 52/113 (46%), Gaps = 9/113 (7%)
Query: 1 MGDRIGKGHFGTVYNGNWHG-------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRH 53
+G ++G+G FG VY G G +VAVK L E+ E F E + +K H
Sbjct: 3 LGKKLGEGAFGEVYKGTLKGDGEGTETKVAVKTLKEGA--SEEEREEFLEEASIMKKLSH 60
Query: 54 ENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQ 106
N+V +G C + L IVT G L + + EK L + + QI++
Sbjct: 61 PNIVRLLGVCTQGEPLYIVTEYMPGGDLLDFLRKHGEKLTLKDLLQMALQIAK 113
Score = 33.2 bits (77), Expect = 0.029
Identities = 10/24 (41%), Positives = 18/24 (75%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
+++++CW+Y P DRP F L++ L
Sbjct: 235 ELMLQCWAYDPEDRPTFSELVEDL 258
>gnl|CDD|197581 smart00219, TyrKc, Tyrosine kinase, catalytic domain.
Phosphotransferases. Tyrosine-specific kinase
subfamily.
Length = 257
Score = 59.9 bits (146), Expect = 2e-11
Identities = 30/80 (37%), Positives = 38/80 (47%), Gaps = 9/80 (11%)
Query: 1 MGDRIGKGHFGTVYNGNWHG-------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRH 53
+G ++G+G FG VY G G EVAVK L D E+ E F E RK H
Sbjct: 3 LGKKLGEGAFGEVYKGKLKGKGGKKKVEVAVKTLKEDA--SEQQIEEFLREARIMRKLDH 60
Query: 54 ENLVLFMGACMKPPHLAIVT 73
N+V +G C + L IV
Sbjct: 61 PNVVKLLGVCTEEEPLYIVM 80
Score = 33.7 bits (78), Expect = 0.025
Identities = 10/24 (41%), Positives = 17/24 (70%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
D++++CW+ P DRP F L++ L
Sbjct: 234 DLMLQCWAEDPEDRPTFSELVEIL 257
>gnl|CDD|173623 cd00180, PKc, Catalytic domain of Protein Kinases. Protein Kinases
(PKs), catalytic (c) domain. PKs catalyze the transfer
of the gamma-phosphoryl group from ATP to
serine/threonine or tyrosine residues on protein
substrates. The PK family is part of a larger
superfamily that includes the catalytic domains of RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, phosphoinositide 3-kinase (PI3K), and
actin-fragmin kinase. PKs make up a large family of
serine/threonine kinases, protein tyrosine kinases
(PTKs), and dual-specificity PKs that phosphorylate both
serine/threonine and tyrosine residues of target
proteins. Majority of protein phosphorylation, about
95%, occurs on serine residues while only 1% occurs on
tyrosine residues. Protein phosphorylation is a
mechanism by which a wide variety of cellular proteins,
such as enzymes and membrane channels, are reversibly
regulated in response to certain stimuli. PKs often
function as components of signal transduction pathways
in which one kinase activates a second kinase, which in
turn, may act on other kinases; this sequential action
transmits a signal from the cell surface to target
proteins, which results in cellular responses. The PK
family is one of the largest known protein families with
more than 100 homologous yeast enzymes and 550 human
proteins. A fraction of PK family members are
pseudokinases that lack crucial residues for catalytic
activity. The mutiplicity of kinases allows for specific
regulation according to substrate, tissue distribution,
and cellular localization. PKs regulate many cellular
processes including proliferation, division,
differentiation, motility, survival, metabolism,
cell-cycle progression, cytoskeletal rearrangement,
immunity, and neuronal functions. Many kinases are
implicated in the development of various human diseases
including different types of cancer.
Length = 215
Score = 59.2 bits (144), Expect = 2e-11
Identities = 27/105 (25%), Positives = 47/105 (44%), Gaps = 5/105 (4%)
Query: 5 IGKGHFGTVYNGNWHG---EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
+G+G FGTVY +VA+K++ + D E E+ +K H N+V G
Sbjct: 1 LGEGGFGTVYLARDKKTGKKVAIKIIKKE--DSSSLLEELLREIEILKKLNHPNIVKLYG 58
Query: 62 ACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQ 106
HL +V C G +L + + K + +++ + QI +
Sbjct: 59 VFEDENHLYLVMEYCEGGSLKDLLKENEGKLSEDEILRILLQILE 103
Score = 30.3 bits (69), Expect = 0.32
Identities = 6/25 (24%), Positives = 12/25 (48%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMKSL 130
+D++ K P RP +++ L
Sbjct: 191 KDLIRKMLQKDPEKRPSAKEILEHL 215
>gnl|CDD|214568 smart00221, STYKc, Protein kinase; unclassified specificity.
Phosphotransferases. The specificity of this class of
kinases can not be predicted. Possible dual-specificity
Ser/Thr/Tyr kinase.
Length = 258
Score = 59.1 bits (144), Expect = 3e-11
Identities = 29/80 (36%), Positives = 38/80 (47%), Gaps = 9/80 (11%)
Query: 1 MGDRIGKGHFGTVYNGNWHG-------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRH 53
+G ++G+G FG VY G G EVAVK L D + + E F E RK H
Sbjct: 3 LGKKLGEGAFGEVYKGTLKGKGDGKEVEVAVKTLKEDASEQQI--EEFLREARIMRKLDH 60
Query: 54 ENLVLFMGACMKPPHLAIVT 73
N+V +G C + L IV
Sbjct: 61 PNIVKLLGVCTEEEPLMIVM 80
Score = 34.1 bits (79), Expect = 0.020
Identities = 9/24 (37%), Positives = 16/24 (66%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
++++CW+ P DRP F L++ L
Sbjct: 235 KLMLQCWAEDPEDRPTFSELVEIL 258
>gnl|CDD|214567 smart00220, S_TKc, Serine/Threonine protein kinases, catalytic
domain. Phosphotransferases. Serine or
threonine-specific kinase subfamily.
Length = 254
Score = 58.7 bits (143), Expect = 4e-11
Identities = 23/107 (21%), Positives = 46/107 (42%), Gaps = 6/107 (5%)
Query: 1 MGDRIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+ +++G+G FG VY + VA+KV+ + ++ E E+ +K +H N+V
Sbjct: 3 ILEKLGEGSFGKVYLARDKKTGKLVAIKVIKKKKIKKDR--ERILREIKILKKLKHPNIV 60
Query: 58 LFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQI 104
L +V C G L+ + + + ++ +QI
Sbjct: 61 RLYDVFEDEDKLYLVMEYCEGGDLFDLLKKRG-RLSEDEARFYLRQI 106
>gnl|CDD|133171 cd05039, PTKc_Csk_like, Catalytic domain of C-terminal Src
kinase-like Protein Tyrosine Kinases. Protein Tyrosine
Kinase (PTK) family; C-terminal Src kinase (Csk)
subfamily; catalytic (c) domain. The Csk subfamily is
composed of Csk, Chk, and similar proteins. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Csk
subfamily kinases are cytoplasmic (or nonreceptor) tyr
kinases containing the Src homology domains, SH3 and
SH2, N-terminal to the catalytic tyr kinase domain.
They negatively regulate the activity of Src kinases
that are anchored to the plasma membrane. To inhibit
Src kinases, Csk and Chk are translocated to the
membrane via binding to specific transmembrane
proteins, G-proteins, or adaptor proteins near the
membrane. Csk catalyzes the tyr phosphorylation of the
regulatory C-terminal tail of Src kinases, resulting in
their inactivation. Chk inhibit Src kinases using a
noncatalytic mechanism by simply binding to them. As
negative regulators of Src kinases, Csk and Chk play
important roles in cell proliferation, survival, and
differentiation, and consequently, in cancer
development and progression.
Length = 256
Score = 58.6 bits (142), Expect = 5e-11
Identities = 30/77 (38%), Positives = 39/77 (50%), Gaps = 5/77 (6%)
Query: 1 MGDRIGKGHFGTVYNGNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+G IGKG FG V G++ G+ VAVK L DD +AF E + RH NLV
Sbjct: 10 LGATIGKGEFGDVMLGDYRGQKVAVKCLK----DDSTAAQAFLAEASVMTTLRHPNLVQL 65
Query: 60 MGACMKPPHLAIVTSKC 76
+G ++ L IVT
Sbjct: 66 LGVVLQGNPLYIVTEYM 82
Score = 33.5 bits (77), Expect = 0.027
Identities = 9/25 (36%), Positives = 12/25 (48%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
V+ CW P+ RP F L + L
Sbjct: 230 KVMKDCWELDPAKRPTFKQLREQLA 254
>gnl|CDD|215690 pfam00069, Pkinase, Protein kinase domain.
Length = 260
Score = 56.9 bits (138), Expect = 2e-10
Identities = 26/88 (29%), Positives = 39/88 (44%), Gaps = 4/88 (4%)
Query: 2 GDRIGKGHFGTVYNGNWHG---EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
++G G FGTVY G VAVK+L +K + + E+ R+ H N+V
Sbjct: 4 LRKLGSGSFGTVYKAKHKGTGKIVAVKILKKRSEKSKK-DQTARREIRILRRLSHPNIVR 62
Query: 59 FMGACMKPPHLAIVTSKCNGHTLYTNIH 86
+ A HL +V C G L+ +
Sbjct: 63 LIDAFEDKDHLYLVMEYCEGGDLFDYLS 90
>gnl|CDD|173624 cd00192, PTKc, Catalytic domain of Protein Tyrosine Kinases.
Protein Tyrosine Kinase (PTK) family, catalytic domain.
This PTKc family is part of a larger superfamily that
includes the catalytic domains of protein
serine/threonine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. They can
be classified into receptor and non-receptor tyr
kinases. PTKs play important roles in many cellular
processes including, lymphocyte activation, epithelium
growth and maintenance, metabolism control,
organogenesis regulation, survival, proliferation,
differentiation, migration, adhesion, motility, and
morphogenesis. Receptor tyr kinases (RTKs) are integral
membrane proteins which contain an extracellular
ligand-binding region, a transmembrane segment, and an
intracellular tyr kinase domain. RTKs are usually
activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain, leading to
intracellular signaling. Some RTKs are orphan receptors
with no known ligands. Non-receptor (or cytoplasmic)
tyr kinases are distributed in different intracellular
compartments and are usually multi-domain proteins
containing a catalytic tyr kinase domain as well as
various regulatory domains such as SH3 and SH2. PTKs
are usually autoinhibited and require a mechanism for
activation. In many PTKs, the phosphorylation of tyr
residues in the activation loop is essential for
optimal activity. Aberrant expression of PTKs is
associated with many development abnormalities and
cancers.
Length = 262
Score = 56.0 bits (136), Expect = 4e-10
Identities = 26/77 (33%), Positives = 38/77 (49%), Gaps = 8/77 (10%)
Query: 3 DRIGKGHFGTVYNGNWHG------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
++G+G FG VY G G EVAVK L D ++E+ + F E +K H N+
Sbjct: 1 KKLGEGAFGEVYKGKLKGKDGKTTEVAVKTLKEDASEEER--KDFLKEARVMKKLGHPNV 58
Query: 57 VLFMGACMKPPHLAIVT 73
V +G C + L +V
Sbjct: 59 VRLLGVCTEEEPLYLVL 75
Score = 34.8 bits (81), Expect = 0.011
Identities = 10/25 (40%), Positives = 16/25 (64%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
++++ CW P DRP F L++ LE
Sbjct: 238 ELMLSCWQLDPEDRPTFSELVERLE 262
>gnl|CDD|173659 cd05122, PKc_STE, Catalytic domain of STE family Protein Kinases.
Protein Kinases (PKs), STE family, catalytic (c) domain.
PKs catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine or tyrosine residues on
protein substrates. The STE family is part of a larger
superfamily that includes the catalytic domains of other
protein serine/threonine kinases (STKs), protein
tyrosine kinases (PTKs), RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase (PI3K). This family is composed of STKs, and
some dual-specificity PKs that phosphorylate both
threonine and tyrosine residues of target proteins. Most
members are kinases involved in mitogen-activated
protein kinase (MAPK) signaling cascades, acting as MAPK
kinases (MAPKKs), MAPK kinase kinases (MAPKKKs), or MAPK
kinase kinase kinases (MAP4Ks). The MAPK signaling
pathways are important mediators of cellular responses
to extracellular signals. The pathways involve a triple
kinase core cascade comprising of the MAPK, which is
phosphorylated and activated by a MAPKK, which itself is
phosphorylated and activated by a MAPKKK. Each MAPK
cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAPKKK to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. Other STE family members include
p21-activated kinases (PAKs) and class III myosins,
among others. PAKs are Rho family GTPase-regulated
kinases that serve as important mediators in the
function of Cdc42 (cell division cycle 42) and Rac.
Class III myosins are motor proteins containing an
N-terminal kinase catalytic domain and a C-terminal
actin-binding domain, which can phosphorylate several
cytoskeletal proteins, conventional myosin regulatory
light chains, as well as autophosphorylate the
C-terminal motor domain. They play an important role in
maintaining the structural integrity of photoreceptor
cell microvilli.
Length = 253
Score = 53.0 bits (128), Expect = 5e-09
Identities = 29/105 (27%), Positives = 54/105 (51%), Gaps = 6/105 (5%)
Query: 3 DRIGKGHFGTVYNG---NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
++IGKG FG VY EVA+KV+ L+ ++ E E+ +K +H N+V +
Sbjct: 6 EKIGKGGFGEVYKARHKRTGKEVAIKVIK---LESKEKKEKIINEIQILKKCKHPNIVKY 62
Query: 60 MGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQI 104
G+ +K L IV C+G +L + + ++++ V +++
Sbjct: 63 YGSYLKKDELWIVMEFCSGGSLKDLLKSTNQTLTESQIAYVCKEL 107
>gnl|CDD|173629 cd05041, PTKc_Fes_like, Catalytic domain of Fes-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Fes subfamily; catalytic (c) domain. Fes subfamily
members include Fes (or Fps), Fer, and similar proteins.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Fes
subfamily proteins are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal region with FCH
(Fes/Fer/CIP4 homology) and coiled-coil domains,
followed by a SH2 domain, and a C-terminal catalytic
domain. The genes for Fes (feline sarcoma) and Fps
(Fujinami poultry sarcoma) were first isolated from
tumor-causing retroviruses. The viral oncogenes encode
chimeric Fes proteins consisting of Gag sequences at the
N-termini, resulting in unregulated tyr kinase activity.
Fes and Fer kinases play roles in haematopoiesis,
inflammation and immunity, growth factor signaling,
cytoskeletal regulation, cell migration and adhesion,
and the regulation of cell-cell interactions. Fes and
Fer show redundancy in their biological functions.
Length = 251
Score = 49.0 bits (117), Expect = 1e-07
Identities = 31/101 (30%), Positives = 46/101 (45%), Gaps = 6/101 (5%)
Query: 3 DRIGKGHFGTVYNG--NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
++IGKG+FG VY G + EVAVK D K F E ++ H N+V +
Sbjct: 1 EKIGKGNFGDVYKGVLKGNTEVAVKTCRSTLPPDLK--RKFLQEAEILKQYDHPNIVKLI 58
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVG 101
G C++ + IV G +L T + K+K L +
Sbjct: 59 GVCVQKQPIYIVMELVPGGSLLT--FLRKKKNRLTVKKLLQ 97
Score = 33.6 bits (77), Expect = 0.023
Identities = 8/25 (32%), Positives = 16/25 (64%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEK 132
++++CW+Y P +RP F + L+
Sbjct: 227 LMLQCWAYDPENRPSFSEIYNELQI 251
>gnl|CDD|133248 cd05148, PTKc_Srm_Brk, Catalytic domain of the Protein Tyrosine
Kinases, Srm and Brk. Protein Tyrosine Kinase (PTK)
family; Src-related kinase lacking C-terminal
regulatory tyrosine and N-terminal myristylation sites
(Srm) and breast tumor kinase (Brk, also called protein
tyrosine kinase 6); catalytic (c) domains. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Srm and
Brk are a member of the Src subfamily of proteins,
which are cytoplasmic (or non-receptor) tyr kinases.
Src kinases in general contain an N-terminal SH4 domain
with a myristoylation site, followed by SH3 and SH2
domains, a tyr kinase domain, and a regulatory
C-terminal region containing a conserved tyr; they are
activated by autophosphorylation at the tyr kinase
domain, but are negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
Srm and Brk however, lack the N-terminal myristylation
sites. Src proteins are involved in signaling pathways
that regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival,
and differentiation. Brk has been found to be
overexpressed in a majority of breast tumors.
Length = 261
Score = 47.4 bits (113), Expect = 5e-07
Identities = 22/75 (29%), Positives = 38/75 (50%), Gaps = 5/75 (6%)
Query: 1 MGDRIGKGHFGTVYNGNW--HGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
+ ++G G+FG V+ G W VA+K+L DD + F+ EV ++ RH++L+
Sbjct: 10 LERKLGSGYFGEVWEGLWKNRVRVAIKILKS---DDLLKQQDFQKEVQALKRLRHKHLIS 66
Query: 59 FMGACMKPPHLAIVT 73
C + I+T
Sbjct: 67 LFAVCSVGEPVYIIT 81
Score = 32.8 bits (75), Expect = 0.052
Identities = 9/23 (39%), Positives = 16/23 (69%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSL 130
++++CW+ +P DRP F L + L
Sbjct: 236 IMLECWAAEPEDRPSFKALREEL 258
>gnl|CDD|173628 cd05038, PTKc_Jak_rpt2, Catalytic (repeat 2) domain of the
Protein Tyrosine Kinases, Janus kinases. Protein
Tyrosine Kinase (PTK) family; Janus kinase (Jak)
subfamily; catalytic (c) domain (repeat 2). The Jak
subfamily is composed of Jak1, Jak2, Jak3, TYK2, and
similar proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. Jak subfamily proteins are cytoplasmic (or
nonreceptor) tyr kinases containing an N-terminal FERM
domain, followed by a Src homology 2 (SH2) domain, a
pseudokinase domain, and a C-terminal tyr kinase
catalytic domain. Most Jaks are expressed in a wide
variety of tissues, except for Jak3, which is expressed
only in hematopoietic cells. Jaks are crucial for
cytokine receptor signaling. They are activated by
autophosphorylation upon cytokine-induced receptor
aggregation, and subsequently trigger downstream
signaling events such as the phosphorylation of signal
transducers and activators of transcription (STATs).
Jaks are also involved in regulating the surface
expression of some cytokine receptors. The Jak-STAT
pathway is involved in many biological processes
including hematopoiesis, immunoregulation, host
defense, fertility, lactation, growth, and
embryogenesis.
Length = 284
Score = 47.4 bits (113), Expect = 5e-07
Identities = 25/69 (36%), Positives = 36/69 (52%), Gaps = 9/69 (13%)
Query: 5 IGKGHFGTVY------NGNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+G+GHFG V G+ GE VAVK L+ + ++ F+ E+ R HEN+V
Sbjct: 12 LGEGHFGKVELCRYDPLGDNTGEQVAVKSLNHSGEEQHRS--DFEREIEILRTLDHENIV 69
Query: 58 LFMGACMKP 66
+ G C KP
Sbjct: 70 KYKGVCEKP 78
Score = 31.2 bits (71), Expect = 0.16
Identities = 10/27 (37%), Positives = 17/27 (62%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
D++ CW +P DRP F L+ +++L
Sbjct: 257 DLMKLCWEAEPQDRPSFADLILIVDRL 283
>gnl|CDD|133214 cd05083, PTKc_Chk, Catalytic domain of the Protein Tyrosine
Kinase, Csk homologous kinase. Protein Tyrosine Kinase
(PTK) family; Csk homologous kinase (Chk); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. Csk subfamily kinases are cytoplasmic (or
nonreceptor) tyr kinases containing the Src homology
domains, SH3 and SH2, N-terminal to the catalytic tyr
kinase domain. They negatively regulate the activity of
Src kinases that are anchored to the plasma membrane.
Chk is also referred to as megakaryocyte-associated
tyrosine kinase (Matk). To inhibit Src kinases, Chk is
translocated to the membrane via binding to specific
transmembrane proteins, G-proteins, or adaptor proteins
near the membrane. Chk inhibit Src kinases using a
noncatalytic mechanism by simply binding to them. As a
negative regulator of Src kinases, Chk may play
important roles in cell proliferation, survival, and
differentiation, and consequently, in cancer
development and progression. Chk is expressed in brain
and hematopoietic cells. Studies in mice reveal that
Chk is not functionally redundant with Csk and that it
plays an important role as a regulator of immune
responses. Chk also plays a role in neural
differentiation in a manner independent of Src by
enhancing Mapk activation via Ras-mediated signaling.
Length = 254
Score = 46.9 bits (111), Expect = 8e-07
Identities = 24/62 (38%), Positives = 33/62 (53%), Gaps = 6/62 (9%)
Query: 1 MGDRIGKGHFGTVYNGNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+G+ IG+G FG V G + G+ VAVK + D T +AF E K H+NLV
Sbjct: 10 LGEIIGEGEFGAVLQGEYTGQKVAVKNIKCDV-----TAQAFLEETAVMTKLHHKNLVRL 64
Query: 60 MG 61
+G
Sbjct: 65 LG 66
Score = 27.6 bits (61), Expect = 2.8
Identities = 13/26 (50%), Positives = 15/26 (57%), Gaps = 1/26 (3%)
Query: 108 VLMK-CWSYKPSDRPDFITLMKSLEK 132
VLM CW +P RP F L + LEK
Sbjct: 228 VLMTSCWETEPKKRPSFHKLREKLEK 253
>gnl|CDD|173633 cd05052, PTKc_Abl, Catalytic domain of the Protein Tyrosine
Kinase, Abelson kinase. Protein Tyrosine Kinase (PTK)
family; Abelson (Abl) kinase; catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Abl (or
c-Abl) is a ubiquitously-expressed cytoplasmic (or
nonreceptor) tyr kinase that contains SH3, SH2, and tyr
kinase domains in its N-terminal region, as well as
nuclear localization motifs, a putative DNA-binding
domain, and F- and G-actin binding domains in its
C-terminal tail. It also contains a short
autoinhibitory cap region in its N-terminus. Abl is
normally inactive and requires phosphorylation and
myristoylation for activation. Abl function depends on
its subcellular localization. In the cytoplasm, Abl
plays a role in cell proliferation and survival. In
response to DNA damage or oxidative stress, Abl is
transported to the nucleus where it induces apoptosis.
In chronic myelogenous leukemia (CML) patients, an
aberrant translocation results in the replacement of
the first exon of Abl with the BCR (breakpoint cluster
region) gene. The resulting BCR-Abl fusion protein is
constitutively active and associates into tetramers,
resulting in a hyperactive kinase sending a continuous
signal. This leads to uncontrolled proliferation,
morphological transformation and anti-apoptotic
effects. BCR-Abl is the target of selective inhibitors,
such as imatinib (Gleevec), used in the treatment of
CML. Abl2, also known as ARG (Abelson-related gene), is
thought to play a cooperative role with Abl in the
proper development of the nervous system. The Tel-ARG
fusion protein, resulting from reciprocal translocation
between chromosomes 1 and 12, is associated with acute
myeloid leukemia (AML). The TEL gene is a frequent
fusion partner of other tyr kinase oncogenes, including
Tel/Abl, Tel/PDGFRbeta, and Tel/Jak2, found in patients
with leukemia and myeloproliferative disorders.
Length = 263
Score = 45.6 bits (108), Expect = 2e-06
Identities = 28/85 (32%), Positives = 40/85 (47%), Gaps = 8/85 (9%)
Query: 1 MGDRIGKGHFGTVYNGNW--HGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
M ++G G +G VY G W + VAVK L +D E F E ++ +H NLV
Sbjct: 10 MKHKLGGGQYGEVYEGVWKKYSLTVAVKTLK----EDTMEVEEFLKEAAVMKEIKHPNLV 65
Query: 58 LFMGACMKPPHLAIVTS-KCNGHTL 81
+G C + P I+T G+ L
Sbjct: 66 QLLGVCTREPPFYIITEFMTYGNLL 90
Score = 32.1 bits (73), Expect = 0.080
Identities = 9/27 (33%), Positives = 17/27 (62%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
+++ CW + PSDRP F + ++ E +
Sbjct: 236 ELMRACWQWNPSDRPSFAEIHQAFETM 262
>gnl|CDD|173626 cd05034, PTKc_Src_like, Catalytic domain of Src kinase-like
Protein Tyrosine Kinases. Protein Tyrosine Kinase
(PTK) family; Src kinase subfamily; catalytic (c)
domain. Src subfamily members include Src, Lck, Hck,
Blk, Lyn, Fgr, Fyn, Yrk, and Yes. The PTKc family is
part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Src (or
c-Src) proteins are cytoplasmic (or non-receptor) tyr
kinases which are anchored to the plasma membrane. They
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival,
and differentiation. They were identified as the first
proto-oncogene products, and they regulate cell
adhesion, invasion, and motility in cancer cells and
tumor vasculature, contributing to cancer progression
and metastasis. Src kinases are overexpressed in a
variety of human cancers, making them attractive
targets for therapy. They are also implicated in acute
inflammatory responses and osteoclast function. Src,
Fyn, Yes, and Yrk are widely expressed, while Blk, Lck,
Hck, Fgr, and Lyn show a limited expression pattern.
Length = 261
Score = 45.0 bits (107), Expect = 3e-06
Identities = 26/75 (34%), Positives = 37/75 (49%), Gaps = 6/75 (8%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
+ ++G G FG V+ G W+G +VAVK L + EAF E +K RH+ LV
Sbjct: 10 LERKLGAGQFGEVWMGTWNGTTKVAVKTLKPGTMSP----EAFLQEAQIMKKLRHDKLVQ 65
Query: 59 FMGACMKPPHLAIVT 73
C + + IVT
Sbjct: 66 LYAVCSEEEPIYIVT 80
Score = 29.6 bits (67), Expect = 0.51
Identities = 10/25 (40%), Positives = 15/25 (60%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
D++++CW P +RP F L LE
Sbjct: 235 DLMLQCWDKDPEERPTFEYLQSFLE 259
>gnl|CDD|132962 cd06631, STKc_YSK4, Catalytic domain of the Protein
Serine/Threonine Kinase, Yeast Sps1/Ste20-related
kinase 4. Serine/threonine kinases (STKs), yeast
Sps1/Ste20-related kinase 4 (YSK4) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The YSK4 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. YSK4 is a putative MAPKKK,
whose mammalian gene has been isolated. MAPKKKs (MKKKs
or MAP3Ks) phosphorylate and activate MAPK kinases
(MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate
and activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals.
Length = 265
Score = 44.5 bits (105), Expect = 4e-06
Identities = 27/75 (36%), Positives = 42/75 (56%), Gaps = 5/75 (6%)
Query: 2 GDRIGKGHFGTVYNG--NWHGEVAVK--VLDV-DYLDDEKTWEAFKLEVTTFRKTRHENL 56
G+ +GKG +GTVY G N +AVK LD + L EK +E + EV + +H N+
Sbjct: 5 GEVLGKGAYGTVYCGLTNQGQLIAVKQVELDTSNVLAAEKEYEKLQEEVDLLKSLKHVNI 64
Query: 57 VLFMGACMKPPHLAI 71
V ++G C+ ++I
Sbjct: 65 VQYLGTCLDDNTISI 79
>gnl|CDD|133172 cd05040, PTKc_Ack_like, Catalytic domain of the Protein Tyrosine
Kinase, Activated Cdc42-associated kinase. Protein
Tyrosine Kinase (PTK) family; Activated
Cdc42-associated kinase (Ack) subfamily; catalytic (c)
domain. Ack subfamily members include Ack1,
thirty-eight-negative kinase 1 (Tnk1), and similar
proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. Ack subfamily members are cytoplasmic (or
nonreceptor) tyr kinases containing an N-terminal
catalytic domain, an SH3 domain, a Cdc42-binding CRIB
domain, and a proline-rich region. They are mainly
expressed in brain and skeletal tissues and are
involved in the regulation of cell adhesion and growth,
receptor degradation, and axonal guidance. Ack1 is also
associated with androgen-independent prostate cancer
progression. Tnk1 regulates TNFalpha signaling and may
play an important role in cell death.
Length = 257
Score = 44.3 bits (105), Expect = 5e-06
Identities = 27/90 (30%), Positives = 35/90 (38%), Gaps = 9/90 (10%)
Query: 3 DRIGKGHFGTVYNGNWHG------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
++G G FG V G W VAVK L D L D + F E HENL
Sbjct: 1 KKLGDGSFGVVRRGEWSTSGGKVIPVAVKCLKSDKLSD--IMDDFLKEAAIMHSLDHENL 58
Query: 57 VLFMGACMKPPHLAIVTSKCNGHTLYTNIH 86
+ G + P L +VT +L +
Sbjct: 59 IRLYGVVLTHP-LMMVTELAPLGSLLDRLR 87
Score = 32.7 bits (75), Expect = 0.058
Identities = 12/29 (41%), Positives = 20/29 (68%), Gaps = 3/29 (10%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKLPK 135
+V+++CW++ P+DRP F L E LP+
Sbjct: 232 NVMLQCWAHNPADRPTFAALR---EFLPE 257
>gnl|CDD|223589 COG0515, SPS1, Serine/threonine protein kinase [General function
prediction only / Signal transduction mechanisms /
Transcription / DNA replication, recombination, and
repair].
Length = 384
Score = 44.7 bits (104), Expect = 6e-06
Identities = 25/103 (24%), Positives = 37/103 (35%), Gaps = 3/103 (2%)
Query: 5 IGKGHFGTVYNGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHE-NLVLFMGAC 63
+G+G FG VY VA+KVL K E F E+ H N+V
Sbjct: 8 LGEGSFGEVYLARDRKLVALKVLAKKLESKSKEVERFLREIQILASLNHPPNIVKLYDFF 67
Query: 64 MKPPHLAIVTSKCNGHTL--YTNIHIYKEKFALNKMSTVGQQI 104
L +V +G +L K + ++ + QI
Sbjct: 68 QDEGSLYLVMEYVDGGSLEDLLKKIGRKGPLSESEALFILAQI 110
>gnl|CDD|173724 cd06606, STKc_MAPKKK, Catalytic domain of the Protein
Serine/Threonine Kinase, Mitogen-Activated Protein
Kinase Kinase Kinase. Serine/threonine kinases (STKs),
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MAPKKK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. MAPKKKs (MKKKs or MAP3Ks)
are also called MAP/ERK kinase kinases (MEKKs) in some
cases. They phosphorylate and activate MAPK kinases
(MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate
and activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. This subfamily is composed of
the Apoptosis Signal-regulating Kinases ASK1 (or
MAPKKK5) and ASK2 (or MAPKKK6), MEKK1, MEKK2, MEKK3,
MEKK4, as well as plant and fungal MAPKKKs. Also
included in this subfamily are the cell division
control proteins Schizosaccharomyces pombe Cdc7 and
Saccharomyces cerevisiae Cdc15.
Length = 260
Score = 43.7 bits (104), Expect = 9e-06
Identities = 20/68 (29%), Positives = 35/68 (51%), Gaps = 10/68 (14%)
Query: 2 GDRIGKGHFGTVY------NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHEN 55
G+ +G+G FG+VY G +AVK +++ D E+ EA + E+ +H N
Sbjct: 5 GELLGRGSFGSVYLALDKDTG---ELMAVKSVELSG-DSEEELEALEREIRILSSLQHPN 60
Query: 56 LVLFMGAC 63
+V + G+
Sbjct: 61 IVRYYGSE 68
>gnl|CDD|133199 cd05068, PTKc_Frk_like, Catalytic domain of Fyn-related
kinase-like Protein Tyrosine Kinases. Protein Tyrosine
Kinase (PTK) family; Human Fyn-related kinase (Frk) and
similar proteins; catalytic (c) domain. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Frk and
Srk are members of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival,
and differentiation. Frk, also known as Rak, is
specifically expressed in liver, lung, kidney,
intestine, mammary glands, and the islets of
Langerhans. Rodent homologs were previously referred to
as GTK (gastrointestinal tyr kinase), BSK (beta-cell
Src-like kinase), or IYK (intestinal tyr kinase).
Studies in mice reveal that Frk is not essential for
viability. It plays a role in the signaling that leads
to cytokine-induced beta-cell death in Type I diabetes.
It also regulates beta-cell number during embryogenesis
and early in life.
Length = 261
Score = 43.6 bits (103), Expect = 9e-06
Identities = 23/72 (31%), Positives = 32/72 (44%), Gaps = 6/72 (8%)
Query: 4 RIGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
++G G FG V+ G W+ VAVK L +D + F E +K RH L+
Sbjct: 13 KLGAGQFGEVWEGLWNNTTPVAVKTLKPGTMDP----KDFLAEAQIMKKLRHPKLIQLYA 68
Query: 62 ACMKPPHLAIVT 73
C + IVT
Sbjct: 69 VCTLEEPIYIVT 80
Score = 33.9 bits (78), Expect = 0.018
Identities = 12/25 (48%), Positives = 15/25 (60%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
D+++ CW P DRP F TL LE
Sbjct: 235 DIMLDCWKEDPDDRPTFETLQWKLE 259
>gnl|CDD|132991 cd06917, STKc_NAK1_like, Catalytic domain of Fungal Nak1-like
Protein Serine/Threonine Kinases. Serine/threonine
kinases (STKs), Nak1 subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl
group from ATP to serine/threonine residues on protein
substrates. The Nak1 subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. This subfamily
is composed of Schizosaccharomyces pombe Nak1,
Saccharomyces cerevisiae Kic1p (kinase that interacts
with Cdc31p) and related proteins. Nak1 (also known as
N-rich kinase 1), is required by fission yeast for
polarizing the tips of actin cytoskeleton and is
involved in cell growth, cell separation, cell
morphology and cell-cycle progression. Kic1p is
required by budding yeast for cell integrity and
morphogenesis. Kic1p interacts with Cdc31p, the yeast
homologue of centrin, and phosphorylates substrates in
a Cdc31p-dependent manner.
Length = 277
Score = 43.6 bits (103), Expect = 1e-05
Identities = 24/84 (28%), Positives = 44/84 (52%), Gaps = 6/84 (7%)
Query: 5 IGKGHFGTVYNG--NWHGE-VAVKVLDVDYLDDE--KTWEAFKLEVTTFRKTRHENLVLF 59
IG+G +G VY G G VA+K++++D DD+ L ++ R+++ N+ +
Sbjct: 9 IGRGAYGAVYRGKHVPTGRVVALKIINLDTPDDDVSDIQREVAL-LSQLRQSQPPNITKY 67
Query: 60 MGACMKPPHLAIVTSKCNGHTLYT 83
G+ +K P L I+ G ++ T
Sbjct: 68 YGSYLKGPRLWIIMEYAEGGSVRT 91
>gnl|CDD|173731 cd06627, STKc_Cdc7_like, Catalytic domain of Cell division
control protein 7-like Protein Serine/Threonine
Kinases. Serine/threonine kinases (STKs), (Cdc7)-like
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Cdc7-like subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this subfamily
include Schizosaccharomyces pombe Cdc7, Saccharomyces
cerevisiae Cdc15, Arabidopsis thaliana
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK) epsilon, and related proteins. MAPKKKs
phosphorylate and activate MAPK kinases (MAPKKs or MKKs
or MAP2Ks), which in turn phosphorylate and activate
MAPKs during signaling cascades that are important in
mediating cellular responses to extracellular signals.
Fission yeast Cdc7 is essential for cell division by
playing a key role in the initiation of septum
formation and cytokinesis. Budding yeast Cdc15
functions to coordinate mitotic exit with cytokinesis.
Arabidopsis MAPKKK epsilon is required for pollen
development in the plasma membrane.
Length = 254
Score = 42.6 bits (101), Expect = 2e-05
Identities = 25/88 (28%), Positives = 44/88 (50%), Gaps = 4/88 (4%)
Query: 2 GDRIGKGHFGTVYNG-NWH-GE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
GD IG+G FG VY G N G+ VA+K + ++ + +E ++ E+ + +H N+V
Sbjct: 5 GDLIGRGAFGVVYKGLNLETGDFVAIKQISLEKIKEEAL-KSIMQEIDLLKNLKHPNIVK 63
Query: 59 FMGACMKPPHLAIVTSKCNGHTLYTNIH 86
++G+ L I+ +L I
Sbjct: 64 YIGSIETSDSLYIILEYAENGSLRQIIK 91
>gnl|CDD|132957 cd06626, STKc_MEKK4, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 4.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase
4 (MEKK4) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The MEKK4 subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. MEKK4 is a
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK or MKKK or MAP3K), that phosphorylates and
activates MAPK kinases (MAPKKs or MKKs or MAP2Ks),
which in turn phosphorylate and activate MAPKs during
signaling cascades that are important in mediating
cellular responses to extracellular signals. MEKK4
activates the c-Jun N-terminal kinase (JNK) and p38
MAPK signaling pathways by directly activating their
respective MAPKKs, MKK4/MKK7 and MKK3/MKK6. JNK and p38
are collectively known as stress-activated MAPKs, as
they are activated in response to a variety of
environmental stresses and pro-inflammatory cytokines.
MEKK4 also plays roles in the re-polarization of the
actin cytoskeleton in response to osmotic stress, in
the proper closure of the neural tube, in
cardiovascular development, and in immune responses.
Length = 264
Score = 41.2 bits (97), Expect = 6e-05
Identities = 26/83 (31%), Positives = 39/83 (46%), Gaps = 4/83 (4%)
Query: 2 GDRIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
G++IG G FG VY N + +AVK + + D KT + E+ +H NLV
Sbjct: 5 GNKIGGGTFGKVYTAVNLDTGELMAVKEIRIQDN-DPKTIKEIADEMKVLELLKHPNLVK 63
Query: 59 FMGACMKPPHLAIVTSKCNGHTL 81
+ G + + I C+G TL
Sbjct: 64 YYGVEVHREKVYIFMEYCSGGTL 86
>gnl|CDD|173657 cd05113, PTKc_Btk_Bmx, Catalytic domain of the Protein Tyrosine
Kinases, Bruton's tyrosine kinase and Bone marrow
kinase on the X chromosome. Protein Tyrosine Kinase
(PTK) family; Bruton's tyrosine kinase (Btk) and Bone
marrow kinase on the X chromosome (Bmx); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Btk and
Bmx (also named Etk) are members of the Tec subfamily
of proteins, which are cytoplasmic (or nonreceptor) tyr
kinases with similarity to Src kinases in that they
contain Src homology protein interaction domains (SH3,
SH2) N-terminal to the catalytic tyr kinase domain.
Unlike Src kinases, most Tec subfamily members (except
Rlk) also contain an N-terminal pleckstrin homology
(PH) domain, which binds the products of PI3K and
allows membrane recruitment and activation. In
addition, Btk contains the Tec homology (TH) domain
with proline-rich and zinc-binding regions. Tec kinases
are expressed mainly by haematopoietic cells. Btk is
expressed in B-cells, and a variety of myeloid cells
including mast cells, platelets, neutrophils, and
dendrictic cells. It interacts with a variety of
partners, from cytosolic proteins to nuclear
transcription factors, suggesting a diversity of
functions. Stimulation of a diverse array of cell
surface receptors, including antigen engagement of the
B-cell receptor (BCR), leads to PH-mediated membrane
translocation of Btk and subsequent phosphorylation by
Src kinase and activation. Btk plays an important role
in the life cycle of B-cells including their
development, differentiation, proliferation, survival,
and apoptosis. Mutations in Btk cause the primary
immunodeficiency disease, X-linked agammaglobulinaemia
(XLA) in humans. Bmx is primarily expressed in bone
marrow and the arterial endothelium, and plays an
important role in ischemia-induced angiogenesis. It
facilitates arterial growth, capillary formation,
vessel maturation, and bone marrow-derived endothelial
progenitor cell mobilization.
Length = 256
Score = 41.0 bits (96), Expect = 8e-05
Identities = 24/71 (33%), Positives = 34/71 (47%), Gaps = 6/71 (8%)
Query: 5 IGKGHFGTVYNGNWHGE--VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGA 62
+G G FG V G W G+ VA+K++ + +++ F E K HE LV G
Sbjct: 12 LGTGQFGVVKYGKWRGQYDVAIKMIKEGSMSEDE----FIEEAKVMMKLSHEKLVQLYGV 67
Query: 63 CMKPPHLAIVT 73
C K + IVT
Sbjct: 68 CTKQRPIYIVT 78
Score = 26.4 bits (58), Expect = 7.7
Identities = 9/24 (37%), Positives = 14/24 (58%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLE 131
++ CW K +RP F L+ S+E
Sbjct: 233 IMYSCWHEKAEERPTFQQLLSSIE 256
>gnl|CDD|133189 cd05058, PTKc_Met_Ron, Catalytic domain of the Protein Tyrosine
Kinases, Met and Ron. Protein Tyrosine Kinase (PTK)
family; Met and Ron; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Met and
Ron are receptor tyr kinases (RTKs) composed of an
alpha-beta heterodimer. The extracellular alpha chain
is disulfide linked to the beta chain, which contains
an extracellular ligand-binding region with a sema
domain, a PSI domain and four IPT repeats, a
transmembrane segment, and an intracellular catalytic
domain. Binding to their ligands leads to receptor
dimerization, autophosphorylation, activation, and
intracellular signaling. Met binds to the ligand,
hepatocyte growth factor/scatter factor (HGF/SF), and
is also called the HGF receptor. HGF/Met signaling
plays a role in growth, transformation, cell motility,
invasion, metastasis, angiogenesis, wound healing, and
tissue regeneration. Aberrant expression of Met through
mutations or gene amplification is associated with many
human cancers including hereditary papillary renal and
gastric carcinomas. The ligand for Ron is macrophage
stimulating protein (MSP). Ron signaling is important
in regulating cell motility, adhesion, proliferation,
and apoptosis. Aberrant Ron expression is implicated in
tumorigenesis and metastasis.
Length = 262
Score = 40.9 bits (96), Expect = 8e-05
Identities = 23/74 (31%), Positives = 33/74 (44%), Gaps = 8/74 (10%)
Query: 5 IGKGHFGTVYNGNWHGE------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
IGKGHFG VY+G AVK L + + D + E F E + H N++
Sbjct: 3 IGKGHFGCVYHGTLIDSDGQKIHCAVKSL--NRITDLEEVEQFLKEGIIMKDFSHPNVLS 60
Query: 59 FMGACMKPPHLAIV 72
+G C+ +V
Sbjct: 61 LLGICLPSEGSPLV 74
Score = 30.9 bits (70), Expect = 0.21
Identities = 10/27 (37%), Positives = 17/27 (62%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
+V++ CW KP RP F L+ +E++
Sbjct: 233 EVMLSCWHPKPEMRPTFSELVSRIEQI 259
>gnl|CDD|173637 cd05059, PTKc_Tec_like, Catalytic domain of Tec-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK)
family; Tyrosine kinase expressed in hepatocellular
carcinoma (Tec) subfamily; catalytic (c) domain. The
Tec subfamily is composed of Tec, Btk, Bmx (Etk), Itk
(Tsk, Emt), Rlk (Txk), and similar proteins. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Tec
kinases are cytoplasmic (or nonreceptor) tyr kinases
(nRTKs) with similarity to Src kinases in that they
contain Src homology protein interaction domains (SH3,
SH2) N-terminal to the catalytic tyr kinase domain.
Unlike Src kinases, most Tec subfamily members (except
Rlk) also contain an N-terminal pleckstrin homology
(PH) domain, which binds the products of PI3K and
allows membrane recruitment and activation. In
addition, some members contain the Tec homology (TH)
domain, which contains proline-rich and zinc-binding
regions. Tec kinases form the second largest subfamily
of nRTKs and are expressed mainly by haematopoietic
cells, although Tec and Bmx are also found in
endothelial cells. B-cells express Btk and Tec, while
T-cells express Itk, Txk, and Tec. Collectively, Tec
kinases are expressed in a variety of myeloid cells
such as mast cells, platelets, macrophages, and
dendritic cells. Each Tec kinase shows a distinct
cell-type pattern of expression. The function of Tec
kinases in lymphoid cells have been studied
extensively. They play important roles in the
development, differentiation, maturation, regulation,
survival, and function of B-cells and T-cells.
Mutations in Btk cause the severe B-cell
immunodeficiency, X-linked agammaglobulinaemia (XLA).
Length = 256
Score = 40.9 bits (96), Expect = 9e-05
Identities = 24/71 (33%), Positives = 34/71 (47%), Gaps = 6/71 (8%)
Query: 5 IGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGA 62
+G G FG V+ G W G +VA+K++ + ++ E E K H NLV G
Sbjct: 12 LGSGQFGVVHLGKWRGKIDVAIKMIREGAMSEDDFIE----EAKVMMKLSHPNLVQLYGV 67
Query: 63 CMKPPHLAIVT 73
C K + IVT
Sbjct: 68 CTKQRPIFIVT 78
Score = 33.6 bits (77), Expect = 0.028
Identities = 10/24 (41%), Positives = 13/24 (54%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
++ CW KP DRP F L+ L
Sbjct: 232 TIMYSCWHEKPEDRPAFKKLLSQL 255
>gnl|CDD|173755 cd08215, STKc_Nek, Catalytic domain of the Protein Serine/Threonine
Kinase, Never In Mitosis gene A-related kinase.
Serine/Threonine Kinases (STKs), Never In Mitosis gene A
(NIMA)-related kinase (Nek) family, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. The Nek family is
composed of 11 different mammalian members (Nek1-11)
with similarity to the catalytic domain of Aspergillus
nidulans NIMA kinase, the founding member of the Nek
family which was identified in a screen for cell cycle
mutants that were prevented from entering mitosis. Neks
contain a conserved N-terminal catalytic domain and a
more divergent C-terminal regulatory region of various
sizes and structures. They are involved in the
regulation of downstream processes following the
activation of Cdc2, and many of their functions are cell
cycle-related. They play critical roles in microtubule
dynamics during ciliogenesis and mitosis.
Length = 258
Score = 40.6 bits (96), Expect = 9e-05
Identities = 33/143 (23%), Positives = 61/143 (42%), Gaps = 29/143 (20%)
Query: 5 IGKGHFGTVY------NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
IGKG FG VY +G +K +D+ + +++ +A EV +K H N++
Sbjct: 8 IGKGSFGKVYLVRRKSDGK---LYVLKEIDLSNMSEKEREDALN-EVKILKKLNHPNIIK 63
Query: 59 FMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPS 118
+ + + L IV +G L I K++ G+ ++ ++ W
Sbjct: 64 YYESFEEKGKLCIVMEYADGGDLSQKIKKQKKE---------GKPFPEEQILD-W----- 108
Query: 119 DRPDFITLMKSLEKLPKKRILAR 141
F+ L +L+ L ++IL R
Sbjct: 109 ----FVQLCLALKYLHSRKILHR 127
>gnl|CDD|133202 cd05071, PTKc_Src, Catalytic domain of the Protein Tyrosine
Kinase, Src. Protein Tyrosine Kinase (PTK) family; Src
kinase; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Src (or
c-Src) is a cytoplasmic (or non-receptor) tyr kinase,
containing an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
with a conserved tyr. It is activated by
autophosphorylation at the tyr kinase domain, and is
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). c-Src is
the vertebrate homolog of the oncogenic protein (v-Src)
from Rous sarcoma virus. Together with other Src
subfamily proteins, it is involved in signaling
pathways that regulate cytokine and growth factor
responses, cytoskeleton dynamics, cell proliferation,
survival, and differentiation. Src also play a role in
regulating cell adhesion, invasion, and motility in
cancer cells and tumor vasculature, contributing to
cancer progression and metastasis. Elevated levels of
Src kinase activity have been reported in a variety of
human cancers. Several inhibitors of Src have been
developed as anti-cancer drugs. Src is also implicated
in acute inflammatory responses and osteoclast
function.
Length = 262
Score = 40.8 bits (95), Expect = 1e-04
Identities = 26/72 (36%), Positives = 36/72 (50%), Gaps = 7/72 (9%)
Query: 4 RIGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
++G+G FG V+ G W+G VA+K L + EAF E +K RHE LV
Sbjct: 13 KLGQGCFGEVWMGTWNGTTRVAIKTLKPGTMSP----EAFLQEAQVMKKLRHEKLVQLYA 68
Query: 62 ACMKPPHLAIVT 73
+ P + IVT
Sbjct: 69 VVSEEP-IYIVT 79
Score = 26.9 bits (59), Expect = 4.1
Identities = 10/26 (38%), Positives = 15/26 (57%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMKSLE 131
D++ +CW +P +RP F L LE
Sbjct: 233 HDLMCQCWRKEPEERPTFEYLQAFLE 258
>gnl|CDD|133187 cd05056, PTKc_FAK, Catalytic domain of the Protein Tyrosine
Kinase, Focal Adhesion Kinase. Protein Tyrosine Kinase
(PTK) family; Focal Adhesion Kinase (FAK); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. FAK is a cytoplasmic (or nonreceptor) tyr
kinase that contains an autophosphorylation site and a
FERM domain at the N-terminus, a central tyr kinase
domain, proline-rich regions, and a C-terminal FAT
(focal adhesion targeting) domain. FAK activity is
dependent on integrin-mediated cell adhesion, which
facilitates N-terminal autophosphorylation. Full
activation is achieved by the phosphorylation of its
two adjacent A-loop tyrosines. FAK is important in
mediating signaling initiated at sites of cell
adhesions and at growth factor receptors. Through
diverse molecular interactions, FAK functions as a
biosensor or integrator to control cell motility. It is
a key regulator of cell survival, proliferation,
migration and invasion, and thus plays an important
role in the development and progression of cancer. Src
binds to autophosphorylated FAK forming the FAK-Src
dual kinase complex, which is activated in a wide
variety of tumor cells and generates signals promoting
growth and metastasis. FAK is being developed as a
target for cancer therapy.
Length = 270
Score = 40.5 bits (95), Expect = 1e-04
Identities = 21/73 (28%), Positives = 30/73 (41%), Gaps = 8/73 (10%)
Query: 1 MGDRIGKGHFGTVYNGNWHG------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHE 54
+G IG+G FG VY G + VAVK + E F E R+ H
Sbjct: 10 LGRCIGEGQFGDVYQGVYMSPENEKIAVAVKTCKNCTSPSVR--EKFLQEAYIMRQFDHP 67
Query: 55 NLVLFMGACMKPP 67
++V +G + P
Sbjct: 68 HIVKLIGVITENP 80
Score = 32.4 bits (74), Expect = 0.061
Identities = 13/24 (54%), Positives = 14/24 (58%), Gaps = 1/24 (4%)
Query: 109 LM-KCWSYKPSDRPDFITLMKSLE 131
LM KCW+Y PS RP F L L
Sbjct: 240 LMTKCWAYDPSKRPRFTELKAQLS 263
>gnl|CDD|173727 cd06613, STKc_MAP4K3_like, Catalytic domain of Mitogen-activated
protein kinase kinase kinase kinase-like Protein
Serine/Threonine Kinases. Serine/threonine kinases
(STKs), mitogen-activated protein kinase (MAPK) kinase
kinase kinase 3 (MAPKKKK3 or MAP4K3)-like subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K3-like
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. This subfamily includes
MAP4K3, MAP4K1, MAP4K2, MAP4K5, and related proteins.
Vertebrate members contain an N-terminal catalytic
domain and a C-terminal citron homology (CNH)
regulatory domain, similar to MAP4K4/6. MAP4Ks are
involved in some MAPK signaling pathways that are
important in mediating cellular responses to
extracellular signals by activating a MAPK kinase
kinase (MAPKKK or MAP3K or MKKK). Each MAPK cascade is
activated either by a small GTP-binding protein or by
an adaptor protein, which transmits the signal either
directly to a MAP3K to start the triple kinase core
cascade or indirectly through a mediator kinase, a
MAP4K. MAP4K1, also called haematopoietic progenitor
kinase 1 (HPK1), is a hematopoietic-specific STK
involved in many cellular signaling cascades including
MAPK, antigen receptor, apoptosis, growth factor, and
cytokine signaling. It participates in the regulation
of T cell receptor signaling and T cell-mediated immune
responses. MAP4K2 was referred to as germinal center
(GC) kinase because of its preferred location in GC B
cells. MAP4K3 plays a role in the nutrient-responsive
pathway of mTOR (mammalian target of rapamycin)
signaling. It is required in the activation of S6
kinase by amino acids and for the phosphorylation of
the mTOR-regulated inhibitor of eukaryotic initiation
factor 4E. MAP4K5, also called germinal center
kinase-related enzyme (GCKR), has been shown to
activate the MAPK c-Jun N-terminal kinase (JNK).
Length = 262
Score = 40.7 bits (96), Expect = 1e-04
Identities = 27/81 (33%), Positives = 44/81 (54%), Gaps = 6/81 (7%)
Query: 4 RIGKGHFGTVYNG-NWH-GE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
RIG G +G VY + GE VA+KV+ L+ +E + E++ ++ RH N+V +
Sbjct: 10 RIGSGTYGDVYKARDIATGELVAIKVIK---LEPGDDFEIIQQEISMLKECRHPNIVAYF 66
Query: 61 GACMKPPHLAIVTSKCNGHTL 81
G+ ++ L IV C G +L
Sbjct: 67 GSYLRRDKLWIVMEYCGGGSL 87
>gnl|CDD|173732 cd06628, STKc_MAPKKK_Byr2_like, Catalytic domain of fungal
Byr2-like MAP Kinase Kinase Kinases. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase (MAPKKK) subfamily, fungal Byr2-like
proteins, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MAPKKK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this group
include the MAPKKKs Schizosaccharomyces pombe Byr2,
Saccharomyces cerevisiae and Cryptococcus neoformans
Ste11, and related proteins. They contain an N-terminal
SAM (sterile alpha-motif) domain, which mediates
protein-protein interaction, and a C-terminal catalytic
domain. MAPKKKs phosphorylate and activate MAPK kinases
(MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate
and activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. Fission yeast Byr2 is regulated
by Ras1. It responds to pheromone signaling and
controls mating through the MAPK pathway. Budding yeast
Ste11 functions in MAPK cascades that regulate mating,
high osmolarity glycerol, and filamentous growth
responses.
Length = 267
Score = 40.2 bits (94), Expect = 1e-04
Identities = 24/79 (30%), Positives = 40/79 (50%), Gaps = 9/79 (11%)
Query: 2 GDRIGKGHFGTVYNG--NWHGEV-AVKVLDVDYLDDE------KTWEAFKLEVTTFRKTR 52
G IG G FG+VY G GE+ AVK +++ + +A E+ ++ +
Sbjct: 5 GALIGSGSFGSVYLGMNASSGELMAVKQVELPSVSASSKDRKRSMLDALAREIALLKELQ 64
Query: 53 HENLVLFMGACMKPPHLAI 71
HEN+V ++G+ + HL I
Sbjct: 65 HENIVQYLGSSLDADHLNI 83
>gnl|CDD|133213 cd05082, PTKc_Csk, Catalytic domain of the Protein Tyrosine
Kinase, C-terminal Src kinase. Protein Tyrosine Kinase
(PTK) family; C-terminal Src kinase (Csk); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. The Csk subfamily kinases are cytoplasmic
(or nonreceptor) tyr kinases containing the Src
homology domains, SH3 and SH2, N-terminal to the
catalytic tyr kinase domain. They negatively regulate
the activity of Src kinases that are anchored to the
plasma membrane. To inhibit Src kinases, Csk is
translocated to the membrane via binding to specific
transmembrane proteins, G-proteins, or adaptor proteins
near the membrane. Csk catalyzes the tyr
phosphorylation of the regulatory C-terminal tail of
Src kinases, resulting in their inactivation. Csk is
expressed in a wide variety of tissues. As a negative
regulator of Src, Csk plays a role in cell
proliferation, survival, and differentiation, and
consequently, in cancer development and progression. In
addition, Csk also shows Src-independent functions. It
is a critical component in G-protein signaling, and
plays a role in cytoskeletal reorganization and cell
migration.
Length = 256
Score = 40.0 bits (93), Expect = 2e-04
Identities = 24/58 (41%), Positives = 32/58 (55%), Gaps = 6/58 (10%)
Query: 5 IGKGHFGTVYNGNWHG-EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
IGKG FG V G++ G +VAVK + D T +AF E + + RH NLV +G
Sbjct: 14 IGKGEFGDVMLGDYRGNKVAVKCIKND-----ATAQAFLAEASVMTQLRHSNLVQLLG 66
Score = 28.0 bits (62), Expect = 2.1
Identities = 10/27 (37%), Positives = 16/27 (59%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
DV+ +CW + RP F+ L + LE +
Sbjct: 230 DVMKQCWHLDAATRPSFLQLREQLEHI 256
>gnl|CDD|173725 cd06608, STKc_myosinIII_like, Catalytic domain of Class III
myosin-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), Class III myosin-like
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
class III myosin-like subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Class III
myosins are motor proteins with an N-terminal kinase
catalytic domain and a C-terminal actin-binding motor
domain. Class III myosins are present in the
photoreceptors of invertebrates and vertebrates and in
the auditory hair cells of mammals. The kinase domain
of myosin III can phosphorylate several cytoskeletal
proteins, conventional myosin regulatory light chains,
and can autophosphorylate the C-terminal motor domain.
Myosin III may play an important role in maintaining
the structural integrity of photoreceptor cell
microvilli. It may also function as a cargo carrier
during light-dependent translocation, in photoreceptor
cells, of proteins such as transducin and arrestin. The
Drosophila class III myosin, called NinaC (Neither
inactivation nor afterpotential protein C), is critical
in normal adaptation and termination of photoresponse.
Vertebrates contain two isoforms of class III myosin,
IIIA and IIIB. This subfamily also includes mammalian
NIK-like embryo-specific kinase (NESK), Traf2- and
Nck-interacting kinase (TNIK), mitogen-activated
protein kinase (MAPK) kinase kinase kinase 4 (MAPKKKK4
or MAP4K4) and MAPKKKK6 (or MAP4K6). MAP4Ks are
involved in some MAPK signaling pathways by activating
a MAPK kinase kinase (MAPKKK or MAP3K or MKKK). Each
MAPK cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAP3K to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. MAPK signaling cascades are important
in mediating cellular responses to extracellular
signals.
Length = 275
Score = 39.6 bits (93), Expect = 3e-04
Identities = 24/74 (32%), Positives = 38/74 (51%), Gaps = 10/74 (13%)
Query: 1 MGDRIGKGHFGTVYNGNWHGE----VAVKVLDVDYLDDEKTWEAFKLEVTTFRK-TRHEN 55
+ + IG+G +G VY H + VA+K++D+ +DE+ E K E RK + H N
Sbjct: 10 LVEVIGEGTYGKVYKAR-HKKTGQLVAIKIMDII--EDEE--EEIKEEYNILRKYSNHPN 64
Query: 56 LVLFMGACMKPPHL 69
+ F GA +K
Sbjct: 65 IATFYGAFIKKNPP 78
>gnl|CDD|132973 cd06642, STKc_STK25-YSK1, Catalytic domain of the Protein
Serine/Threonine Kinase, STK25 or Yeast
Sps1/Ste20-related kinase 1. Serine/threonine kinases
(STKs), STK25 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The STK25 subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. STK25 is also
called Ste20/oxidant stress response kinase 1 (SOK1) or
yeast Sps1/Ste20-related kinase 1 (YSK1). STK25 is
localized in the Golgi apparatus through its
interaction with the Golgi matrix protein GM130. It may
play a role in the regulation of cell migration and
polarization. STK25 binds and phosphorylates CCM3
(cerebral cavernous malformation 3), also called PCD10
(programmed cell death 10), and may play a role in
apoptosis. Human STK25 is a candidate gene responsible
for pseudopseudohypoparathyroidism (PPHP), a disease
that shares features with the Albright hereditary
osteodystrophy (AHO) phenotype.
Length = 277
Score = 39.3 bits (91), Expect = 3e-04
Identities = 26/79 (32%), Positives = 41/79 (51%), Gaps = 5/79 (6%)
Query: 3 DRIGKGHFGTVYNG--NWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+RIGKG FG VY G N E VA+K++D++ +DE E + E+T + + +
Sbjct: 10 ERIGKGSFGEVYKGIDNRTKEVVAIKIIDLEEAEDE--IEDIQQEITVLSQCDSPYITRY 67
Query: 60 MGACMKPPHLAIVTSKCNG 78
G+ +K L I+ G
Sbjct: 68 YGSYLKGTKLWIIMEYLGG 86
>gnl|CDD|133178 cd05046, PTK_CCK4, Pseudokinase domain of the Protein Tyrosine
Kinase, Colon Carcinoma Kinase 4. Protein Tyrosine
Kinase (PTK) family; Colon Carcinoma Kinase 4 (CCK4);
pseudokinase domain. The PTKc (catalytic domain)
family, to which this subfamily belongs, includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. CCK4,
also called protein tyrosine kinase 7 (PTK7), is an
orphan receptor tyr kinase (RTK) containing an
extracellular region with seven immunoglobulin domains,
a transmembrane segment, and an intracellular inactive
pseudokinase domain. Studies in mice reveal that CCK4
is essential for neural development. Mouse embryos
containing a truncated CCK4 die perinatally and display
craniorachischisis, a severe form of neural tube
defect. The mechanism of action of the CCK4
pseudokinase is still unknown. Other pseudokinases such
as HER3 rely on the activity of partner RTKs.
Length = 275
Score = 39.0 bits (91), Expect = 4e-04
Identities = 25/76 (32%), Positives = 33/76 (43%), Gaps = 11/76 (14%)
Query: 5 IGKGHFGTVYNGNWHGE--------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
+G+G FG V+ G V VK L DE F+ E+ FRK H+N+
Sbjct: 13 LGRGEFGEVFLAKAKGIEEEGGETLVLVKALQ--KTKDENLQSEFRRELDMFRKLSHKNV 70
Query: 57 VLFMGACM-KPPHLAI 71
V +G C PH I
Sbjct: 71 VRLLGLCREAEPHYMI 86
Score = 28.2 bits (63), Expect = 1.5
Identities = 9/27 (33%), Positives = 16/27 (59%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMKSLEK 132
++ +CW+ P DRP F L+ +L +
Sbjct: 249 YKLMTRCWAVNPKDRPSFSELVSALGE 275
>gnl|CDD|133179 cd05048, PTKc_Ror, Catalytic Domain of the Protein Tyrosine
Kinases, Receptor tyrosine kinase-like Orphan
Receptors. Protein Tyrosine Kinase (PTK) family;
Receptor tyrosine kinase-like Orphan Receptor (Ror)
subfamily; catalytic (c) domain. The Ror subfamily
consists of Ror1, Ror2, and similar proteins. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Ror
proteins are orphan receptor tyr kinases (RTKs)
containing an extracellular region with
immunoglobulin-like, cysteine-rich, and kringle
domains, a transmembrane segment, and an intracellular
catalytic domain. Ror RTKs are unrelated to the nuclear
receptor subfamily called retinoid-related orphan
receptors (RORs). RTKs are usually activated through
ligand binding, which causes dimerization and
autophosphorylation of the intracellular tyr kinase
catalytic domain. Ror kinases are expressed in many
tissues during development. They play important roles
in bone and heart formation. Mutations in human Ror2
result in two different bone development genetic
disorders, recessive Robinow syndrome and brachydactyly
type B. Drosophila Ror is expressed only in the
developing nervous system during neurite outgrowth and
neuronal differentiation, suggesting a role for
Drosophila Ror in neural development. More recently,
mouse Ror1 and Ror2 have also been found to play an
important role in regulating neurite growth in central
neurons. Ror1 and Ror2 are believed to have some
overlapping and redundant functions.
Length = 283
Score = 39.0 bits (91), Expect = 4e-04
Identities = 21/69 (30%), Positives = 30/69 (43%), Gaps = 10/69 (14%)
Query: 5 IGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
+G+G FG VY G G VA+K L + K + F+ E +H N+
Sbjct: 13 LGEGAFGKVYKGELTGPNERLSATSVAIKTLKENAE--PKVQQEFRQEAELMSDLQHPNI 70
Query: 57 VLFMGACMK 65
V +G C K
Sbjct: 71 VCLLGVCTK 79
>gnl|CDD|133186 cd05055, PTKc_PDGFR, Catalytic domain of the Protein Tyrosine
Kinases, Platelet Derived Growth Factor Receptors.
Protein Tyrosine Kinase (PTK) family; Platelet Derived
Growth Factor Receptor (PDGFR) subfamily; catalytic (c)
domain. The PDGFR subfamily consists of PDGFR alpha,
PDGFR beta, KIT, CSF-1R, the mammalian FLT3, and similar
proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
PDGFR subfamily members are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
five immunoglobulin-like domains, a transmembrane
segment, and an intracellular catalytic domain. PDGFR
kinase domains are autoinhibited by their juxtamembrane
regions containing tyr residues. The binding to their
ligands leads to receptor dimerization, trans
phosphorylation and activation, and intracellular
signaling. PDGFR subfamily receptors are important in
the development of a variety of cells. PDGFRs are
expressed in a many cells including fibroblasts,
neurons, endometrial cells, mammary epithelial cells,
and vascular smooth muscle cells. PDGFR signaling is
critical in normal embryonic development, angiogenesis,
and wound healing. PDGFRs transduce mitogenic signals
for connective tissue cells and are important for cell
shape and motility. Kit is important in the development
of melanocytes, germ cells, mast cells, hematopoietic
stem cells, the interstitial cells of Cajal, and the
pacemaker cells of the GI tract. CSF-1R signaling is
critical in the regulation of macrophages and
osteoclasts. Mammalian FLT3 plays an important role in
the survival, proliferation, and differentiation of stem
cells.
Length = 302
Score = 39.0 bits (91), Expect = 4e-04
Identities = 26/101 (25%), Positives = 42/101 (41%), Gaps = 9/101 (8%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTR 52
G +G G FG V +G +VAVK+L E+ +L++ +
Sbjct: 39 FGKTLGAGAFGKVVEATAYGLSKSDAVMKVAVKMLKPTAHSSEREALMSELKIMSHLGN- 97
Query: 53 HENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFA 93
HEN+V +GAC + ++T C L + +E F
Sbjct: 98 HENIVNLLGACTIGGPILVITEYCCYGDLLNFLRRKRESFL 138
Score = 29.8 bits (67), Expect = 0.48
Identities = 8/27 (29%), Positives = 14/27 (51%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
D++ CW P RP F +++ + K
Sbjct: 275 DIMKTCWDADPLKRPTFKQIVQLIGKQ 301
>gnl|CDD|133200 cd05069, PTKc_Yes, Catalytic domain of the Protein Tyrosine
Kinase, Yes. Protein Tyrosine Kinase (PTK) family; Yes
kinase; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Yes (or
c-Yes) is a member of the Src subfamily of proteins,
which are cytoplasmic (or non-receptor) tyr kinases.
Src kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival,
and differentiation. c-Yes kinase is the cellular
homolog of the oncogenic protein (v-Yes) encoded by the
Yamaguchi 73 and Esh sarcoma viruses. It displays
functional overlap with other Src subfamily members,
particularly Src. It also shows some unique functions
such as binding to occludins, transmembrane proteins
that regulate extracellular interactions in tight
junctions. Yes also associates with a number of
proteins in different cell types that Src does not
interact with, like JAK2 and gp130 in pre-adipocytes,
and Pyk2 in treated pulmonary vein endothelial cells.
Although the biological function of Yes remains
unclear, it appears to have a role in regulating
cell-cell interactions and vesicle trafficking in
polarized cells.
Length = 260
Score = 38.1 bits (88), Expect = 7e-04
Identities = 25/72 (34%), Positives = 37/72 (51%), Gaps = 7/72 (9%)
Query: 4 RIGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
++G+G FG V+ G W+G +VA+K L + EAF E +K RH+ LV
Sbjct: 13 KLGQGCFGEVWMGTWNGTTKVAIKTLKPGTMMP----EAFLQEAQIMKKLRHDKLVPLYA 68
Query: 62 ACMKPPHLAIVT 73
+ P + IVT
Sbjct: 69 VVSEEP-IYIVT 79
>gnl|CDD|133201 cd05070, PTKc_Fyn_Yrk, Catalytic domain of the Protein Tyrosine
Kinases, Fyn and Yrk. Protein Tyrosine Kinase (PTK)
family; Fyn and Yrk kinases; catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Fyn and
Yrk are members of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival,
and differentiation. Fyn, together with Lck, plays a
critical role in T-cell signal transduction by
phosphorylating ITAM (immunoreceptor tyr activation
motif) sequences on T-cell receptors, ultimately
leading to the proliferation and differentiation of
T-cells. In addition, Fyn is involved in the
myelination of neurons, and is implicated in
Alzheimer's and Parkinson's diseases. Yrk has been
detected only in chickens. It is primarily found in
neuronal and epithelial cells and in macrophages. It
may play a role in inflammation and in response to
injury.
Length = 260
Score = 38.1 bits (88), Expect = 7e-04
Identities = 25/72 (34%), Positives = 36/72 (50%), Gaps = 7/72 (9%)
Query: 4 RIGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
++G G FG V+ G W+G +VAVK L + E+F E +K RH+ LV
Sbjct: 13 KLGNGQFGEVWMGTWNGNTKVAVKTLKPGTMSP----ESFLEEAQIMKKLRHDKLVQLYA 68
Query: 62 ACMKPPHLAIVT 73
+ P + IVT
Sbjct: 69 VVSEEP-IYIVT 79
Score = 27.7 bits (61), Expect = 2.7
Identities = 9/26 (34%), Positives = 15/26 (57%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMKSLE 131
+++++CW P +RP F L LE
Sbjct: 233 HELMLQCWKKDPEERPTFEYLQSFLE 258
>gnl|CDD|173653 cd05105, PTKc_PDGFR_alpha, Catalytic domain of the Protein Tyrosine
Kinase, Platelet Derived Growth Factor Receptor alpha.
Protein Tyrosine Kinase (PTK) family; Platelet Derived
Growth Factor Receptor (PDGFR) alpha; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. PDGFR
alpha is a receptor tyr kinase (RTK) containing an
extracellular ligand-binding region with five
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding to
its ligands, the PDGFs, leads to receptor dimerization,
trans phosphorylation and activation, and intracellular
signaling. PDGFR alpha forms homodimers or heterodimers
with PDGFR beta, depending on the nature of the PDGF
ligand. PDGF-AA, PDGF-AB, and PDGF-CC induce PDGFR alpha
homodimerization. PDGFR signaling plays many roles in
normal embryonic development and adult physiology. PDGFR
alpha signaling is important in the formation of lung
alveoli, intestinal villi, mesenchymal dermis, and hair
follicles, as well as in the development of
oligodendrocytes, retinal astrocytes, neural crest
cells, and testicular cells. Aberrant PDGFR alpha
expression is associated with some human cancers.
Mutations in PDGFR alpha have been found within a subset
of gastrointestinal stromal tumors (GISTs). An active
fusion protein FIP1L1-PDGFR alpha, derived from
interstitial deletion, is associated with idiopathic
hypereosinophilic syndrome (HES) and chronic
eosinophilic leukemia (CEL).
Length = 400
Score = 38.1 bits (88), Expect = 0.001
Identities = 30/100 (30%), Positives = 45/100 (45%), Gaps = 9/100 (9%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTR 52
+G +G G FG V G +G +VAVK+L EK +L++ T
Sbjct: 41 LGRILGSGAFGKVVEGTAYGLSRSQPVMKVAVKMLKPTARSSEKQALMSELKIMTHLGP- 99
Query: 53 HENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKF 92
H N+V +GAC K + I+T C L +H ++ F
Sbjct: 100 HLNIVNLLGACTKSGPIYIITEYCFYGDLVNYLHKNRDNF 139
Score = 32.7 bits (74), Expect = 0.062
Identities = 11/27 (40%), Positives = 18/27 (66%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
D+++KCW+ +P RP F+ L +E L
Sbjct: 371 DIMVKCWNSEPEKRPSFLHLSDIVESL 397
>gnl|CDD|133243 cd05112, PTKc_Itk, Catalytic domain of the Protein Tyrosine
Kinase, Interleukin-2-inducible T-cell Kinase. Protein
Tyrosine Kinase (PTK) family; Interleukin-2
(IL-2)-inducible T-cell kinase (Itk); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Itk
(also known as Tsk or Emt) is a member of the Tec
subfamily of proteins, which are cytoplasmic (or
nonreceptor) tyr kinases with similarity to Src kinases
in that they contain Src homology protein interaction
domains (SH3, SH2) N-terminal to the catalytic tyr
kinase domain. Unlike Src kinases, most Tec subfamily
members (except Rlk) also contain an N-terminal
pleckstrin homology (PH) domain, which binds the
products of PI3K and allows membrane recruitment and
activation. In addition, Itk contains the Tec homology
(TH) domain containing one proline-rich region and a
zinc-binding region. Tec kinases are expressed mainly
by haematopoietic cells. Itk is expressed in T-cells
and mast cells, and is important in their development
and differentiation. Of the three Tec kinases expressed
in T-cells, Itk plays the predominant role in T-cell
receptor (TCR) signaling. It is activated by
phosphorylation upon TCR crosslinking and is involved
in the pathway resulting in phospholipase C-gamma1
activation and actin polymerization. It also plays a
role in the downstream signaling of the T-cell
costimulatory receptor CD28, the T-cell surface
receptor CD2, and the chemokine receptor CXCR4. In
addition, Itk is crucial for the development of
T-helper(Th)2 effector responses.
Length = 256
Score = 37.2 bits (86), Expect = 0.001
Identities = 21/70 (30%), Positives = 30/70 (42%), Gaps = 6/70 (8%)
Query: 5 IGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGA 62
IG G FG V+ G W +VA+K + + +E F E K H LV G
Sbjct: 12 IGSGQFGLVWLGYWLEKRKVAIKTIREGAMSEED----FIEEAQVMMKLSHPKLVQLYGV 67
Query: 63 CMKPPHLAIV 72
C + + +V
Sbjct: 68 CTERSPICLV 77
Score = 29.9 bits (67), Expect = 0.53
Identities = 14/51 (27%), Positives = 22/51 (43%), Gaps = 8/51 (15%)
Query: 80 TLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDRPDFITLMKSL 130
T+ +YK + A Q +++ CW +P DRP F L+ L
Sbjct: 213 TINAGFRLYKPRLA--------SQSVYELMQHCWKERPEDRPSFSLLLHQL 255
>gnl|CDD|133238 cd05107, PTKc_PDGFR_beta, Catalytic domain of the Protein Tyrosine
Kinase, Platelet Derived Growth Factor Receptor beta.
Protein Tyrosine Kinase (PTK) family; Platelet Derived
Growth Factor Receptor (PDGFR) beta; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. PDGFR
beta is a receptor tyr kinase (RTK) containing an
extracellular ligand-binding region with five
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding to
its ligands, the PDGFs, leads to receptor dimerization,
trans phosphorylation and activation, and intracellular
signaling. PDGFR beta forms homodimers or heterodimers
with PDGFR alpha, depending on the nature of the PDGF
ligand. PDGF-BB and PDGF-DD induce PDGFR beta
homodimerization. PDGFR signaling plays many roles in
normal embryonic development and adult physiology. PDGFR
beta signaling leads to a variety of cellular effects
including the stimulation of cell growth and chemotaxis,
as well as the inhibition of apoptosis and GAP
junctional communication. It is critical in normal
angiogenesis as it is involved in the recruitment of
pericytes and smooth muscle cells essential for vessel
stability. Aberrant PDGFR beta expression is associated
with some human cancers. The continuously-active fusion
proteins of PDGFR beta with COL1A1 and TEL are
associated with dermatofibrosarcoma protuberans (DFSP)
and a subset of chronic myelomonocytic leukemia (CMML),
respectively.
Length = 401
Score = 36.9 bits (85), Expect = 0.003
Identities = 30/100 (30%), Positives = 43/100 (43%), Gaps = 9/100 (9%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTR 52
+G +G G FG V HG +VAVK+L EK +L++ +
Sbjct: 41 LGRTLGSGAFGRVVEATAHGLSHSQSTMKVAVKMLKSTARSSEKQALMSELKIMSHLGP- 99
Query: 53 HENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKF 92
H N+V +GAC K + I+T C L +H K F
Sbjct: 100 HLNIVNLLGACTKGGPIYIITEYCRYGDLVDYLHRNKHTF 139
Score = 26.9 bits (59), Expect = 5.9
Identities = 10/27 (37%), Positives = 15/27 (55%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
+++ KCW K RPDF L+ + L
Sbjct: 373 EIMQKCWEEKFEIRPDFSQLVHLVGDL 399
>gnl|CDD|132976 cd06645, STKc_MAP4K3, Catalytic domain of the Protein
Serine/Threonine Kinase, Mitogen-activated protein
kinase kinase kinase kinase 3. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase kinase 3 (MAPKKKK3 or MAP4K3) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K3 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this subfamily
contain an N-terminal catalytic domain and a C-terminal
citron homology (CNH) regulatory domain, similar to
MAP4K4/6. MAP4Ks are involved in some MAPK signaling
pathways that are important in mediating cellular
responses to extracellular signals by activating a MAPK
kinase kinase (MAPKKK or MAP3K or MKKK). Each MAPK
cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAP3K to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. MAP4K3 plays a role in the
nutrient-responsive pathway of mTOR (mammalian target
of rapamycin) signaling. MAP4K3 is required in the
activation of S6 kinase by amino acids and for the
phosphorylation of the mTOR-regulated inhibitor of
eukaryotic initiation factor 4E. mTOR regulates
ribosome biogenesis and protein translation, and is
frequently deregulated in cancer.
Length = 267
Score = 36.6 bits (84), Expect = 0.003
Identities = 24/87 (27%), Positives = 42/87 (48%), Gaps = 6/87 (6%)
Query: 4 RIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
RIG G +G VY N N A+KV+ ++ +D + + E+ + +H N+V +
Sbjct: 16 RIGSGTYGDVYKARNVNTGELAAIKVIKLEPGED---FAVVQQEIIMMKDCKHSNIVAYF 72
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHI 87
G+ ++ L I C G +L H+
Sbjct: 73 GSYLRRDKLWICMEFCGGGSLQDIYHV 99
>gnl|CDD|132940 cd06609, STKc_MST3_like, Catalytic domain of Mammalian Ste20-like
protein kinase 3-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), mammalian Ste20-like
protein kinase 3 (MST3)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MST3-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. This subfamily is composed
of MST3, MST4, STK25, Schizosaccharomyces pombe Nak1
and Sid1, Saccharomyces cerevisiae sporulation-specific
protein 1 (SPS1), and related proteins. Nak1 is
required by fission yeast for polarizing the tips of
actin cytoskeleton and is involved in cell growth, cell
separation, cell morphology and cell-cycle progression.
Sid1 is a component in the septation initiation network
(SIN) signaling pathway, and plays a role in
cytokinesis. SPS1 plays a role in regulating proteins
required for spore wall formation. MST4 plays a role in
mitogen-activated protein kinase (MAPK) signaling
during cytoskeletal rearrangement, morphogenesis, and
apoptosis. MST3 phosphorylates the STK NDR and may play
a role in cell cycle progression and cell morphology.
STK25 may play a role in the regulation of cell
migration and polarization.
Length = 274
Score = 36.4 bits (85), Expect = 0.003
Identities = 24/78 (30%), Positives = 37/78 (47%), Gaps = 5/78 (6%)
Query: 4 RIGKGHFGTVYNGNWHG---EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
IGKG FG VY VA+KV+D++ +DE E + E+ + R + +
Sbjct: 8 CIGKGSFGEVYKAIDKRTNQVVAIKVIDLEEAEDE--IEDIQQEIQFLSQCRSPYITKYY 65
Query: 61 GACMKPPHLAIVTSKCNG 78
G+ +K L I+ C G
Sbjct: 66 GSFLKGSKLWIIMEYCGG 83
>gnl|CDD|173728 cd06614, STKc_PAK, Catalytic domain of the Protein Serine/Threonine
Kinase, p21-activated kinase. Serine/threonine kinases
(STKs), p21-activated kinase (PAK) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The PAK subfamily is
part of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. PAKs are Rho
family GTPase-regulated kinases that serve as important
mediators in the function of Cdc42 (cell division cycle
42) and Rac. PAKs are implicated in the regulation of
many cellular processes including growth factor
receptor-mediated proliferation, cell polarity, cell
motility, cell death and survival, and actin
cytoskeleton organization. PAK deregulation is
associated with tumor development. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
Group I PAKs contain a PBD (p21-binding domain)
overlapping with an AID (autoinhibitory domain), a
C-terminal catalytic domain, SH3 binding sites and a
non-classical SH3 binding site for PIX (PAK-interacting
exchange factor). Group II PAKs contain a PBD and a
catalytic domain, but lack other motifs found in group I
PAKs. Since group II PAKs do not contain an obvious AID,
they may be regulated differently from group I PAKs.
Group I PAKs interact with the SH3 containing proteins
Nck, Grb2 and PIX; no such binding has been demonstrated
for group II PAKs.
Length = 286
Score = 36.4 bits (85), Expect = 0.003
Identities = 25/109 (22%), Positives = 52/109 (47%), Gaps = 11/109 (10%)
Query: 3 DRIGKGHFGTVYNGNWHG---EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
++IG+G G VY EVA+K + + ++ E E+ + +H N+V +
Sbjct: 25 EKIGEGASGEVYKATDRATGKEVAIKKMRLR----KQNKELIINEILIMKDCKHPNIVDY 80
Query: 60 MGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALN--KMSTVGQQISQ 106
+ + L +V +G +L T+I I + +N +++ V +++ Q
Sbjct: 81 YDSYLVGDELWVVMEYMDGGSL-TDI-ITQNFVRMNEPQIAYVCREVLQ 127
>gnl|CDD|132971 cd06640, STKc_MST4, Catalytic domain of the Protein
Serine/Threonine Kinase, Mammalian Ste20-like protein
kinase 4. Serine/threonine kinases (STKs), mammalian
Ste20-like protein kinase 4 (MST4) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MST4 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. MST4 is sometimes referred
to as MASK (MST3 and SOK1-related kinase). It plays a
role in mitogen-activated protein kinase (MAPK)
signaling during cytoskeletal rearrangement,
morphogenesis, and apoptosis. It influences cell growth
and transformation by modulating the extracellular
signal-regulated kinase (ERK) pathway. MST4 may also
play a role in tumor formation and progression. It
localizes in the Golgi apparatus by interacting with
the Golgi matrix protein GM130 and may play a role in
cell migration.
Length = 277
Score = 36.2 bits (83), Expect = 0.003
Identities = 23/79 (29%), Positives = 39/79 (49%), Gaps = 5/79 (6%)
Query: 3 DRIGKGHFGTVYNG---NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+RIGKG FG V+ G VA+K++D++ +DE E + E+T + + +
Sbjct: 10 ERIGKGSFGEVFKGIDNRTQQVVAIKIIDLEEAEDE--IEDIQQEITVLSQCDSPYVTKY 67
Query: 60 MGACMKPPHLAIVTSKCNG 78
G+ +K L I+ G
Sbjct: 68 YGSYLKGTKLWIIMEYLGG 86
>gnl|CDD|133216 cd05085, PTKc_Fer, Catalytic domain of the Protein Tyrosine Kinase,
Fer. Protein Tyrosine Kinase (PTK) family; Fer kinase;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Fer kinase is a member
of the Fes subfamily of proteins which are cytoplasmic
(or nonreceptor) tyr kinases containing an N-terminal
region with FCH (Fes/Fer/CIP4 homology) and coiled-coil
domains, followed by a SH2 domain, and a C-terminal
catalytic domain. Fer kinase is expressed in a wide
variety of tissues, and is found to reside in both the
cytoplasm and the nucleus. It plays important roles in
neuronal polarization and neurite development,
cytoskeletal reorganization, cell migration, growth
factor signaling, and the regulation of cell-cell
interactions mediated by adherens junctions and focal
adhesions. Fer kinase also regulates cell cycle
progression in malignant cells.
Length = 250
Score = 36.1 bits (83), Expect = 0.004
Identities = 12/23 (52%), Positives = 15/23 (65%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSL 130
V+ +CW YKP +RP F L K L
Sbjct: 226 VMQRCWDYKPENRPKFSELQKEL 248
Score = 34.6 bits (79), Expect = 0.014
Identities = 24/95 (25%), Positives = 41/95 (43%), Gaps = 4/95 (4%)
Query: 5 IGKGHFGTVYNGNWHGE--VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGA 62
+GKG+FG V+ G + VAVK D + K F E ++ H N+V +G
Sbjct: 3 LGKGNFGEVFKGTLKDKTPVAVKTCKEDLPQELKI--KFLSEARILKQYDHPNIVKLIGV 60
Query: 63 CMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKM 97
C + + IV G + + K++ ++
Sbjct: 61 CTQRQPIYIVMELVPGGDFLSFLRKKKDELKTKQL 95
>gnl|CDD|173636 cd05057, PTKc_EGFR_like, Catalytic domain of Epidermal Growth
Factor Receptor-like Protein Tyrosine Kinases. Protein
Tyrosine Kinase (PTK) family; Epidermal Growth Factor
Receptor (EGFR) subfamily; catalytic (c) domain. EGFR
(HER, ErbB) subfamily members include EGFR (HER1,
ErbB1), HER2 (ErbB2), HER3 (ErbB3), HER4 (ErbB4), and
similar proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. The EGFR proteins are receptor tyr kinases
(RTKs) containing an extracellular EGF-related
ligand-binding region, a transmembrane helix, and a
cytoplasmic region with a tyr kinase domain and a
regulatory C-terminal tail. Unlike other tyr kinases,
phosphorylation of the activation loop of EGFR proteins
is not critical to their activation. Instead, they are
activated by ligand-induced dimerization, resulting in
the phosphorylation of tyr residues in the C-terminal
tail, which serve as binding sites for downstream
signaling molecules. Collectively, they can recognize a
variety of ligands including EGF, TGFalpha, and
neuregulins, among others. All four subfamily members
can form homo- or heterodimers. HER3 contains an
impaired kinase domain and depends on its
heterodimerization partner for activation. EGFR
subfamily members are involved in signaling pathways
leading to a broad range of cellular responses
including cell proliferation, differentiation,
migration, growth inhibition, and apoptosis. Gain of
function alterations, through their overexpression,
deletions, or point mutations in their kinase domains,
have been implicated in various cancers. These
receptors are targets of many small molecule inhibitors
and monoclonal antibodies used in cancer therapy.
Length = 279
Score = 36.2 bits (84), Expect = 0.004
Identities = 22/78 (28%), Positives = 30/78 (38%), Gaps = 9/78 (11%)
Query: 1 MGDRIGKGHFGTVYNGNWHGE-------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRH 53
+G G FGTVY G W E VA+KVL + K + E H
Sbjct: 11 KIKVLGSGAFGTVYKGVWIPEGEKVKIPVAIKVLREE--TSPKANKEILDEAYVMASVDH 68
Query: 54 ENLVLFMGACMKPPHLAI 71
++V +G C+ I
Sbjct: 69 PHVVRLLGICLSSQVQLI 86
Score = 28.5 bits (64), Expect = 1.5
Identities = 13/37 (35%), Positives = 16/37 (43%), Gaps = 6/37 (16%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKLPKKRILARSPS 144
VL+KCW RP F L+ K +AR P
Sbjct: 243 VLVKCWMIDAESRPTFKELINEFSK------MARDPQ 273
>gnl|CDD|132977 cd06646, STKc_MAP4K5, Catalytic domain of the Protein
Serine/Threonine Kinase, Mitogen-activated protein
kinase kinase kinase kinase 5. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase kinase 5 (MAPKKKK5 or MAP4K5) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAP4K5 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this subfamily
contain an N-terminal catalytic domain and a C-terminal
citron homology (CNH) regulatory domain, similar to
MAP4K4/6. MAP4Ks are involved in some MAPK signaling
pathways that are important in mediating cellular
responses to extracellular signals by activating a MAPK
kinase kinase (MAPKKK or MAP3K or MKKK). Each MAPK
cascade is activated either by a small GTP-binding
protein or by an adaptor protein, which transmits the
signal either directly to a MAP3K to start the triple
kinase core cascade or indirectly through a mediator
kinase, a MAP4K. MAP4K5, also called germinal center
kinase-related enzyme (GCKR), has been shown to
activate the MAPK c-Jun N-terminal kinase (JNK). MAP4K5
also facilitates Wnt signaling in B cells, and may
therefore be implicated in the control of cell fate,
proliferation, and polarity.
Length = 267
Score = 36.2 bits (83), Expect = 0.004
Identities = 26/87 (29%), Positives = 45/87 (51%), Gaps = 6/87 (6%)
Query: 4 RIGKGHFGTVYNG-NWH-GEVA-VKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
R+G G +G VY N H GE+A VK++ ++ DD + + E+ ++ +H N+V +
Sbjct: 16 RVGSGTYGDVYKARNLHTGELAAVKIIKLEPGDD---FSLIQQEIFMVKECKHCNIVAYF 72
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHI 87
G+ + L I C G +L H+
Sbjct: 73 GSYLSREKLWICMEYCGGGSLQDIYHV 99
>gnl|CDD|133191 cd05060, PTKc_Syk_like, Catalytic domain of Spleen Tyrosine
Kinase-like Protein Tyrosine Kinases. Protein Tyrosine
Kinase (PTK) family; Spleen Tyrosine Kinase (Syk)
subfamily; catalytic (c) domain. The Syk subfamily is
composed of Syk, ZAP-70, Shark, and similar proteins.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Syk
subfamily kinases are cytoplasmic (or nonreceptor) tyr
kinases containing two Src homology 2 (SH2) domains
N-terminal to the catalytic tyr kinase domain. They are
involved in the signaling downstream of activated
receptors (including B-cell, T-cell, and Fc receptors)
that contain ITAMs (immunoreceptor tyr activation
motifs), leading to processes such as cell
proliferation, differentiation, survival, adhesion,
migration, and phagocytosis. Syk is important in B-cell
receptor (BCR) signaling, while Zap-70 is primarily
expressed in T-cells and NK cells, and is a crucial
component in T-cell receptor (TCR) signaling. Syk also
plays a central role in Fc receptor-mediated
phagocytosis in the adaptive immune system. Shark is
exclusively expressed in ectodermally derived epithelia,
and is localized preferentially to the apical surface of
the epithelial cells, it may play a role in a signaling
pathway for epithelial cell polarity.
Length = 257
Score = 35.8 bits (83), Expect = 0.004
Identities = 9/20 (45%), Positives = 13/20 (65%)
Query: 107 DVLMKCWSYKPSDRPDFITL 126
+++ CW Y+P DRP F L
Sbjct: 229 SIMLSCWKYRPEDRPTFSEL 248
Score = 34.6 bits (80), Expect = 0.011
Identities = 20/70 (28%), Positives = 32/70 (45%), Gaps = 8/70 (11%)
Query: 4 RIGKGHFGTVYNGNWHG------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+G G+FG+V G + EVAVK L +++ K + F E + + H +V
Sbjct: 2 ELGHGNFGSVVKGVYLMKSGKEVEVAVKTLKQEHIAAGK--KEFLREASVMAQLDHPCIV 59
Query: 58 LFMGACMKPP 67
+G C P
Sbjct: 60 RLIGVCKGEP 69
>gnl|CDD|173769 cd08229, STKc_Nek7, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 7. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 7 (Nek7) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek7 subfamily is
one of a family of 11 different Neks (Nek1-11) that are
involved in cell cycle control. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Nek7 is required
for mitotic spindle formation and cytokinesis. It is
enriched in the centrosome and is critical for
microtubule nucleation. Nek7 is activated by Nek9 during
mitosis, and may regulate the p70 ribosomal S6 kinase.
Length = 267
Score = 35.8 bits (82), Expect = 0.004
Identities = 36/156 (23%), Positives = 62/156 (39%), Gaps = 23/156 (14%)
Query: 4 RIGKGHFGTVYNGNW---HGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
+IG+G F VY VA+K + + L D K E+ ++ H N++ +
Sbjct: 9 KIGRGQFSEVYRATCLLDGVPVALKKVQIFDLMDAKARADCIKEIDLLKQLNHPNVIKYY 68
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDR 120
+ ++ L IV + L I +K++ L TV W Y
Sbjct: 69 ASFIEDNELNIVLELADAGDLSRMIKHFKKQKRLIPEKTV------------WKY----- 111
Query: 121 PDFITLMKSLEKLPKKRILARSPSHPLNLSRSAESV 156
F+ L +LE + +R++ R P N+ +A V
Sbjct: 112 --FVQLCSALEHMHSRRVMHRDIK-PANVFITATGV 144
>gnl|CDD|173655 cd05110, PTKc_HER4, Catalytic domain of the Protein Tyrosine
Kinase, HER4. Protein Tyrosine Kinase (PTK) family;
HER4 (ErbB4); catalytic (c) domain. The PTKc family is
part of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. HER4 is a
member of the EGFR (HER, ErbB) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular EGF-related ligand-binding region, a
transmembrane helix, and a cytoplasmic region with a tyr
kinase domain and a regulatory C-terminal tail. Unlike
other tyr kinases, phosphorylation of the activation
loop of EGFR proteins is not critical to their
activation. Instead, they are activated by
ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. Ligands that bind HER4 fall into two groups,
the neuregulins (or heregulins) and some EGFR (HER1)
ligands including betacellulin, HBEGF, and epiregulin.
All four neuregulins (NRG1-4) interact with HER4. Upon
ligand binding, HER4 forms homo- or heterodimers with
other HER proteins. HER4 is essential in embryonic
development. It is implicated in mammary gland, cardiac,
and neural development. As a postsynaptic receptor of
NRG1, HER4 plays an important role in synaptic
plasticity and maturation. The impairment of NRG1/HER4
signaling may contribute to schizophrenia.
Length = 303
Score = 35.8 bits (82), Expect = 0.005
Identities = 38/149 (25%), Positives = 63/149 (42%), Gaps = 24/149 (16%)
Query: 5 IGKGHFGTVYNGNW--HGE-----VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+G G FGTVY G W GE VA+K+L + K F E H +LV
Sbjct: 15 LGSGAFGTVYKGIWVPEGETVKIPVAIKIL--NETTGPKANVEFMDEALIMASMDHPHLV 72
Query: 58 LFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKP 117
+G C+ P + +VT L +H +K+ +G Q L+ W +
Sbjct: 73 RLLGVCLSPT-IQLVTQLMPHGCLLDYVHEHKD--------NIGSQ-----LLLNWCVQI 118
Query: 118 SDRPDFITLMKSLEK-LPKKRILARSPSH 145
+ ++ + + + L + +L +SP+H
Sbjct: 119 AKGMMYLEERRLVHRDLAARNVLVKSPNH 147
>gnl|CDD|173658 cd05114, PTKc_Tec_Rlk, Catalytic domain of the Protein Tyrosine
Kinases, Tyrosine kinase expressed in hepatocellular
carcinoma and Resting lymphocyte kinase. Protein
Tyrosine Kinase (PTK) family; Tyrosine kinase expressed
in hepatocellular carcinoma (Tec) and Resting
lymphocyte kinase (Rlk); catalytic (c) domain. The PTKc
family is part of a larger superfamily, that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Tec and
Rlk (also named Txk) are members of the Tec subfamily
of proteins, which are cytoplasmic (or nonreceptor) tyr
kinases with similarity to Src kinases in that they
contain Src homology protein interaction domains (SH3,
SH2) N-terminal to the catalytic tyr kinase domain.
Unlike Src kinases, most Tec subfamily members (except
Rlk) also contain an N-terminal pleckstrin homology
(PH) domain, which binds the products of PI3K and
allows membrane recruitment and activation. Instead of
PH, Rlk contains an N-terminal cysteine-rich region. In
addition to PH, Tec also contains the Tec homology (TH)
domain with proline-rich and zinc-binding regions. Tec
kinases are expressed mainly by haematopoietic cells.
Tec is more widely-expressed than other Tec subfamily
kinases. It is found in endothelial cells, both B- and
T-cells, and a variety of myeloid cells including mast
cells, erythroid cells, platelets, macrophages and
neutrophils. Rlk is expressed in T-cells and mast cell
lines. Tec and Rlk are both key components of T-cell
receptor (TCR) signaling. They are important in
TCR-stimulated proliferation, IL-2 production and
phopholipase C-gamma1 activation.
Length = 256
Score = 35.6 bits (82), Expect = 0.005
Identities = 23/71 (32%), Positives = 32/71 (45%), Gaps = 6/71 (8%)
Query: 5 IGKGHFGTVYNGNW--HGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGA 62
+G G FG V+ G W +VA+K ++ + +E E E K H LV G
Sbjct: 12 LGSGQFGVVHLGKWRAQIKVAIKAINEGAMSEEDFIE----EAKVMMKLSHPKLVQLYGV 67
Query: 63 CMKPPHLAIVT 73
C + L IVT
Sbjct: 68 CTQQKPLYIVT 78
Score = 31.7 bits (72), Expect = 0.12
Identities = 9/24 (37%), Positives = 15/24 (62%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
+V+ CW KP RP F L++++
Sbjct: 232 EVMYSCWHEKPEGRPTFAELLRAI 255
>gnl|CDD|173645 cd05084, PTKc_Fes, Catalytic domain of the Protein Tyrosine
Kinase, Fes. Protein Tyrosine Kinase (PTK) family; Fes
(or Fps) kinase subfamily; catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Fes
subfamily proteins are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal region with FCH
(Fes/Fer/CIP4 homology) and coiled-coil domains,
followed by a SH2 domain, and a C-terminal catalytic
domain. The genes for Fes (feline sarcoma) and Fps
(Fujinami poultry sarcoma) were first isolated from
tumor-causing retroviruses. The viral oncogenes encode
chimeric Fes proteins consisting of Gag sequences at
the N-termini, resulting in unregulated tyr kinase
activity. Fes kinase is expressed in myeloid, vascular
endothelial, epithelial, and neuronal cells. It plays
important roles in cell growth and differentiation,
angiogenesis, inflammation and immunity, and
cytoskeletal regulation. A recent study implicates Fes
kinase as a tumor suppressor in colorectal cancer.
Length = 252
Score = 35.8 bits (82), Expect = 0.005
Identities = 24/79 (30%), Positives = 36/79 (45%), Gaps = 5/79 (6%)
Query: 3 DRIGKGHFGTVYNGNWHGE---VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+RIG+G+FG V++G + VAVK D K F E ++ H N+V
Sbjct: 1 ERIGRGNFGEVFSGRLRADNTPVAVKSCRETLPPDLK--AKFLQEARILKQYSHPNIVRL 58
Query: 60 MGACMKPPHLAIVTSKCNG 78
+G C + + IV G
Sbjct: 59 IGVCTQKQPIYIVMELVQG 77
Score = 29.2 bits (65), Expect = 0.74
Identities = 9/23 (39%), Positives = 14/23 (60%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSL 130
++ +CW Y P RP F T+ + L
Sbjct: 228 LMERCWEYDPGQRPSFSTVHQEL 250
>gnl|CDD|133180 cd05049, PTKc_Trk, Catalytic domain of the Protein Tyrosine
Kinases, Tropomyosin Related Kinases. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase (Trk)
subfamily; catalytic (c) domain. The Trk subfamily
consists of TrkA, TrkB, TrkC, and similar proteins. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Trk
subfamily members are receptor tyr kinases (RTKs)
containing an extracellular region with arrays of
leucine-rich motifs flanked by two cysteine-rich
clusters followed by two immunoglobulin-like domains, a
transmembrane segment, and an intracellular catalytic
domain. Binding to their ligands, the nerve growth
factor (NGF) family of neutrotrophins, leads to Trk
receptor oligomerization and activation of the
catalytic domain. Trk receptors are mainly expressed in
the peripheral and central nervous systems. They play
important roles in cell fate determination, neuronal
survival and differentiation, as well as in the
regulation of synaptic plasticity. Altered expression
of Trk receptors is associated with many human
diseases.
Length = 280
Score = 35.5 bits (82), Expect = 0.006
Identities = 23/67 (34%), Positives = 33/67 (49%), Gaps = 10/67 (14%)
Query: 5 IGKGHFGTVYNGN-WHGE-------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
+G+G FG V+ G +H E VAVK L +D + + F+ E +HEN+
Sbjct: 13 LGEGAFGKVFLGECYHLEPENDKELVAVKTLKETASNDAR--KDFEREAELLTNFQHENI 70
Query: 57 VLFMGAC 63
V F G C
Sbjct: 71 VKFYGVC 77
>gnl|CDD|132963 cd06632, STKc_MEKK1_plant, Catalytic domain of the Protein
Serine/Threonine Kinase, Plant MAP/ERK kinase kinase 1.
Serine/threonine kinases (STKs), plant MAP/ERK kinase
kinase 1 (MEKK1)-like subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl
group from ATP to serine/threonine residues on protein
substrates. The plant MEKK1 subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. This subfamily
is composed of plant mitogen-activated protein kinase
(MAPK) kinase kinases (MAPKKKs or MKKKs or MAP3Ks)
including Arabidopsis thaliana MEKK1 and MAPKKK3. MEKK1
is a MAPKKK that phosphorylates and activates MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. Arabidopsis
thaliana MEKK1 activates MPK4, a MAPK that regulates
systemic acquired resistance. MEKK1 also participates
in the regulation of temperature-sensitive and
tissue-specific cell death.
Length = 258
Score = 35.5 bits (82), Expect = 0.006
Identities = 22/67 (32%), Positives = 34/67 (50%), Gaps = 7/67 (10%)
Query: 1 MGDRIGKGHFGTVYNG--NWHGE-VAVKVLDVDYLDDEKTWEAFKL---EVTTFRKTRHE 54
G+ +G G FG+VY G G+ AVK + + D + EA K E+ K +H
Sbjct: 4 KGELLGSGSFGSVYEGLNLDDGDFFAVKEVSLA-DDGQTGQEAVKQLEQEIALLSKLQHP 62
Query: 55 NLVLFMG 61
N+V ++G
Sbjct: 63 NIVQYLG 69
>gnl|CDD|133168 cd05036, PTKc_ALK_LTK, Catalytic domain of the Protein Tyrosine
Kinases, Anaplastic Lymphoma Kinase and Leukocyte
Tyrosine Kinase. Protein Tyrosine Kinase (PTK) family;
Anaplastic Lymphoma Kinase (ALK) and Leukocyte Tyrosine
(tyr) Kinase (LTK); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to tyr
residues in protein substrates. ALK and LTK are orphan
receptor tyr kinases (RTKs) whose ligands are not yet
well-defined. RTKs contain an extracellular
ligand-binding domain, a transmembrane region, and an
intracellular tyr kinase domain. They are usually
activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. ALK appears
to play an important role in mammalian neural
development as well as visceral muscle differentiation
in Drosophila. ALK is aberrantly expressed as fusion
proteins, due to chromosomal translocations, in about
60% of anaplastic large cell lymphomas (ALCLs). ALK
fusion proteins are also found in rare cases of diffuse
large B cell lymphomas (DLBCLs). LTK is mainly
expressed in B lymphocytes and neuronal tissues. It is
important in cell proliferation and survival.
Transgenic mice expressing TLK display retarded growth
and high mortality rate. In addition, a polymorphism in
mouse and human LTK is implicated in the pathogenesis
of systemic lupus erythematosus.
Length = 277
Score = 35.5 bits (82), Expect = 0.007
Identities = 19/67 (28%), Positives = 29/67 (43%), Gaps = 6/67 (8%)
Query: 5 IGKGHFGTVYNGNWHG------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
+G G FG VY G + G E+ V V + E+ F +E K H+N+V
Sbjct: 14 LGHGAFGEVYEGLYRGRDGDAVELQVAVKTLPESCSEQDESDFLMEALIMSKFNHQNIVR 73
Query: 59 FMGACMK 65
+G +
Sbjct: 74 LIGVSFE 80
Score = 30.9 bits (70), Expect = 0.25
Identities = 8/24 (33%), Positives = 17/24 (70%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLE 131
++ CW + P DRP+F T+++ ++
Sbjct: 253 IMTDCWQHTPEDRPNFATILERIQ 276
>gnl|CDD|173632 cd05051, PTKc_DDR, Catalytic domain of the Protein Tyrosine
Kinases, Discoidin Domain Receptors. Protein Tyrosine
Kinase (PTK) family; Discoidin Domain Receptor (DDR)
subfamily; catalytic (c) domain. The DDR subfamily
consists of homologs of mammalian DDR1, DDR2, and
similar proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
DDR subfamily members are receptor tyr kinases (RTKs)
containing an extracellular discoidin homology domain, a
transmembrane segment, an extended juxtamembrane region,
and an intracellular catalytic domain. The binding of
the ligand, collagen, to DDRs results in a slow but
sustained receptor activation. DDRs regulate cell
adhesion, proliferation, and extracellular matrix
remodeling. They have been linked to a variety of human
cancers including breast, colon, ovarian, brain, and
lung. There is no evidence showing that DDRs act as
transforming oncogenes. They are more likely to play a
role in the regulation of tumor growth and metastasis.
Length = 296
Score = 35.0 bits (81), Expect = 0.008
Identities = 23/95 (24%), Positives = 34/95 (35%), Gaps = 22/95 (23%)
Query: 4 RIGKGHFGTVY----------------NGNWHGE---VAVKVLDVDYLDDEKTWEAFKLE 44
++G+G FG V+ + VAVKVL D + E F E
Sbjct: 12 KLGEGQFGEVHLCEADGLQDFSEKAFAENDNADAPVLVAVKVLRPD--ASDNAREDFLKE 69
Query: 45 VTTFRKTRHENLVLFMGACMKPPHLAIVT-SKCNG 78
V + N+ +G C P L ++ NG
Sbjct: 70 VKILSRLSDPNIARLLGVCTVDPPLCMIMEYMENG 104
Score = 29.6 bits (67), Expect = 0.66
Identities = 7/24 (29%), Positives = 13/24 (54%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
+++++CW DRP F + L
Sbjct: 271 ELMLECWRRDEEDRPTFREIHLFL 294
>gnl|CDD|173625 cd05032, PTKc_InsR_like, Catalytic domain of Insulin
Receptor-like Protein Tyrosine Kinases. Protein
Tyrosine Kinase (PTK) family; Insulin Receptor (InsR)
subfamily; catalytic (c) domain. The PTKc family is
part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). The InsR subfamily is
composed of InsR, Insulin-like Growth Factor-1 Receptor
(IGF-1R), and similar proteins. PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. InsR and
IGF-1R are receptor tyr kinases (RTKs) composed of two
alphabeta heterodimers. Binding of the ligand (insulin,
IGF-1, or IGF-2) to the extracellular alpha subunit
activates the intracellular tyr kinase domain of the
transmembrane beta subunit. Receptor activation leads
to autophosphorylation, stimulating downstream kinase
activities, which initiate signaling cascades and
biological function. InsR and IGF-1R, which share 84%
sequence identity in their kinase domains, display
physiologically distinct yet overlapping functions in
cell growth, differentiation, and metabolism. InsR
activation leads primarily to metabolic effects while
IGF-1R activation stimulates mitogenic pathways. In
cells expressing both receptors, InsR/IGF-1R hybrids
are found together with classical receptors. Both
receptors can interact with common adaptor molecules
such as IRS-1 and IRS-2.
Length = 277
Score = 35.0 bits (81), Expect = 0.009
Identities = 17/80 (21%), Positives = 32/80 (40%), Gaps = 10/80 (12%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTR 52
+ +G+G FG VY G G VA+K ++ + E+ F E + ++
Sbjct: 10 LIRELGQGSFGMVYEGLAKGVVKGEPETRVAIKTVNENASMRERI--EFLNEASVMKEFN 67
Query: 53 HENLVLFMGACMKPPHLAIV 72
++V +G +V
Sbjct: 68 CHHVVRLLGVVSTGQPTLVV 87
Score = 33.1 bits (76), Expect = 0.044
Identities = 9/26 (34%), Positives = 16/26 (61%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMKSLE 131
+++ CW Y P RP F+ ++ SL+
Sbjct: 251 LELMRMCWQYNPKMRPTFLEIVSSLK 276
>gnl|CDD|132954 cd06623, PKc_MAPKK_plant_like, Catalytic domain of Plant
dual-specificity MAP kinase kinases and similar
proteins. Protein kinases (PKs), MAP kinase kinase
(MAPKK) subfamily, Plant MAPKKs and similar proteins,
catalytic (c) domain. PKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine or
tyrosine residues on protein substrates. The MAPKK
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein serine/threonine
kinases, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. The mitogen-activated
protein (MAP) kinase signaling pathways are important
mediators of cellular responses to extracellular
signals. The pathways involve a triple kinase core
cascade comprising of the MAP kinase (MAPK), which is
phosphorylated and activated by a MAPK kinase (MAPKK or
MKK), which itself is phosphorylated and activated by a
MAPK kinase kinase (MAPKKK or MKKK). Members of this
group include MAPKKs from plants, kinetoplastids,
alveolates, and mycetozoa. The MAPKK, LmxPK4, from
Leishmania mexicana, is important in differentiation
and virulence. Dictyostelium discoideum MEK1 is
required for proper chemotaxis. MEK1 null mutants
display severe defects in cell polarization and
directional movement. Plants contain multiple MAPKKs
like other eukaryotes. The Arabidopsis genome encodes
for 10 MAPKKs while poplar and rice contain 13 MAPKKs
each. The functions of these proteins have not been
fully elucidated. There is evidence to suggest that
MAPK cascades are involved in plant stress responses.
In Arabidopsis, MKK3 plays a role in pathogen
signaling, MKK2 is involved in cold and salt stress
signaling, MKK4/MKK5 participates in innate immunity,
and MKK7 regulates basal and systemic acquired
resistance.
Length = 264
Score = 34.9 bits (81), Expect = 0.009
Identities = 21/75 (28%), Positives = 32/75 (42%), Gaps = 5/75 (6%)
Query: 1 MGDRIGKGHFGTVYNG--NWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+G+G G VY G+ A+K + VD DE+ + E+ T R +V
Sbjct: 5 RVKVLGQGSSGVVYKVRHKPTGKIYALKKIHVD--GDEEFRKQLLRELKTLRSCESPYVV 62
Query: 58 LFMGACMKPPHLAIV 72
GA K ++IV
Sbjct: 63 KCYGAFYKEGEISIV 77
>gnl|CDD|173768 cd08228, STKc_Nek6, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 6. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 6 (Nek6) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek6 subfamily is
one of a family of 11 different Neks (Nek1-11) that are
involved in cell cycle control. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Nek6 is required
for the transition from metaphase to anaphase. It also
plays important roles in mitotic spindle formation and
cytokinesis. Activated by Nek9 during mitosis, Nek6
phosphorylates Eg5, a kinesin that is important for
spindle bipolarity. Nek6 localizes to spindle
microtubules during metaphase and anaphase, and to the
midbody during cytokinesis.
Length = 267
Score = 35.0 bits (80), Expect = 0.010
Identities = 30/141 (21%), Positives = 58/141 (41%), Gaps = 22/141 (15%)
Query: 4 RIGKGHFGTVYNGNWH---GEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
+IG+G F VY VA+K + + + D K + E+ ++ H N++ ++
Sbjct: 9 KIGRGQFSEVYRATCLLDRKPVALKKVQIFEMMDAKARQDCVKEIDLLKQLNHPNVIKYL 68
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDR 120
+ ++ L IV + L I +K++ L TV W Y
Sbjct: 69 DSFIEDNELNIVLELADAGDLSQMIKYFKKQKRLIPERTV------------WKY----- 111
Query: 121 PDFITLMKSLEKLPKKRILAR 141
F+ L ++E + +R++ R
Sbjct: 112 --FVQLCSAVEHMHSRRVMHR 130
>gnl|CDD|133165 cd05033, PTKc_EphR, Catalytic domain of Ephrin Receptor Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK)
family; Ephrin Receptor (EphR) subfamily; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). They can be classified into two classes (EphA
and EphB), according to their extracellular sequences,
which largely correspond to binding preferences for
either GPI-anchored ephrin-A ligands or transmembrane
ephrin-B ligands. Vertebrates have ten EphA and six
EhpB receptors, which display promiscuous ligand
interactions within each class. EphRs contain an ephrin
binding domain and two fibronectin repeats
extracellularly, a transmembrane segment, and a
cytoplasmic tyr kinase domain. Binding of the ephrin
ligand to EphR requires cell-cell contact since both
are anchored to the plasma membrane. This allows
ephrin/EphR dimers to form, leading to the activation
of the intracellular tyr kinase domain. The resulting
downstream signals occur bidirectionally in both
EphR-expressing cells (forward signaling) and
ephrin-expressing cells (reverse signaling). The main
effect of ephrin/EphR interaction is cell-cell
repulsion or adhesion. Ephrin/EphR signaling is
important in neural development and plasticity, cell
morphogenesis and proliferation, cell-fate
determination, embryonic development, tissue
patterning, and angiogenesis.
Length = 266
Score = 35.0 bits (81), Expect = 0.010
Identities = 21/75 (28%), Positives = 30/75 (40%), Gaps = 8/75 (10%)
Query: 5 IGKGHFGTVYNGNWH--GE----VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
IG G FG V G G+ VA+K L +K F E + + H N++
Sbjct: 12 IGGGEFGEVCRGRLKLPGKKEIDVAIKTLKAGS--SDKQRLDFLTEASIMGQFDHPNIIR 69
Query: 59 FMGACMKPPHLAIVT 73
G K + I+T
Sbjct: 70 LEGVVTKSRPVMIIT 84
Score = 28.8 bits (65), Expect = 0.91
Identities = 9/26 (34%), Positives = 16/26 (61%), Gaps = 1/26 (3%)
Query: 109 LMK-CWSYKPSDRPDFITLMKSLEKL 133
LM CW ++RP F ++ +L+K+
Sbjct: 240 LMLDCWQKDRNERPTFSQIVSTLDKM 265
>gnl|CDD|132956 cd06625, STKc_MEKK3_like, Catalytic domain of MAP/ERK kinase
kinase 3-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase
3 (MEKK3)-like subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The MEKK3-like subfamily is part of a
larger superfamily that includes the catalytic domains
of other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. This subfamily
is composed of MEKK3, MEKK2, and related proteins, all
containing an N-terminal PB1 domain, which mediates
oligomerization, and a C-terminal catalytic domain.
MEKK2 and MEKK3 are mitogen-activated protein kinase
(MAPK) kinase kinases (MAPKKKs or MKKKs or MAP3Ks),
proteins that phosphorylate and activate MAPK kinases
(MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate
and activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK2 and MEKK3 activate MEK5
(also called MKK5), which activates extracellular
signal-regulated kinase 5 (ERK5). The ERK5 cascade
plays roles in promoting cell proliferation,
differentiation, neuronal survival, and
neuroprotection. MEKK3 plays an essential role in
embryonic angiogenesis and early heart development.
MEKK2 and MEKK3 can also activate the MAPKs, c-Jun
N-terminal kinase (JNK) and p38, through their
respective MAPKKs.
Length = 263
Score = 34.8 bits (80), Expect = 0.010
Identities = 22/75 (29%), Positives = 35/75 (46%), Gaps = 5/75 (6%)
Query: 2 GDRIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWE--AFKLEVTTFRKTRHENL 56
G +G+G FG VY + + E+AVK + D E E A + E+ + +HE +
Sbjct: 7 GKLLGQGAFGRVYLCYDVDTGRELAVKQVPFDPDSPETKKEVNALECEIQLLKNLQHERI 66
Query: 57 VLFMGACMKPPHLAI 71
V + G L+I
Sbjct: 67 VQYYGCLRDDETLSI 81
>gnl|CDD|173765 cd08225, STKc_Nek5, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 5. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 5 (Nek5) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek5 subfamily is
one of a family of 11 different Neks (Nek1-11). The Nek
family is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Neks are involved in the regulation of
downstream processes following the activation of Cdc2,
and many of their functions are cell cycle-related. They
play critical roles in microtubule dynamics during
ciliogenesis and mitosis. The specific function of Nek5
is unknown.
Length = 257
Score = 34.5 bits (79), Expect = 0.011
Identities = 34/140 (24%), Positives = 59/140 (42%), Gaps = 25/140 (17%)
Query: 5 IGKGHFGTVYNGNWHGE---VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
IG+G FG +Y + +K +D+ + ++ EA K EV K +H N+V F
Sbjct: 8 IGEGSFGKIYLAKAKSDSEHCVIKEIDLTKMPVKEK-EASKKEVILLAKMKHPNIVTFFA 66
Query: 62 ACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDRP 121
+ + L IV C+G L I+ + G S+D ++ W
Sbjct: 67 SFQENGRLFIVMEYCDGGDLMKRINRQR-----------GVLFSEDQIL-SW-------- 106
Query: 122 DFITLMKSLEKLPKKRILAR 141
F+ + L+ + ++IL R
Sbjct: 107 -FVQISLGLKHIHDRKILHR 125
>gnl|CDD|173640 cd05067, PTKc_Lck_Blk, Catalytic domain of the Protein Tyrosine
Kinases, Lymphocyte-specific kinase and Blk. Protein
Tyrosine Kinase (PTK) family; Lck and Blk kinases;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Lck (lymphocyte-specific
kinase) and Blk are members of the Src subfamily of
proteins, which are cytoplasmic (or non-receptor) tyr
kinases. Src kinases contain an N-terminal SH4 domain
with a myristoylation site, followed by SH3 and SH2
domains, a tyr kinase domain, and a regulatory
C-terminal region containing a conserved tyr. They are
activated by autophosphorylation at the tyr kinase
domain, but are negatively regulated by phosphorylation
at the C-terminal tyr by Csk (C-terminal Src Kinase).
Src proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Lck is expressed in T-cells and natural
killer (NK) cells. It plays a critical role in T-cell
maturation, activation, and T-cell receptor (TCR)
signaling. Lck phosphorylates ITAM (immunoreceptor tyr
activation motif) sequences on several subunits of TCRs,
leading to the activation of different second messenger
cascades. Phosphorylated ITAMs serve as binding sites
for other signaling factor such as Syk and ZAP-70,
leading to their activation and propagation of
downstream events. In addition, Lck regulates
drug-induced apoptosis by interfering with the
mitochondrial death pathway. The apototic role of Lck is
independent of its primary function in T-cell signaling.
Blk is expressed specifically in B-cells. It is involved
in pre-BCR (B-cell receptor) signaling.
Length = 260
Score = 34.8 bits (80), Expect = 0.012
Identities = 28/105 (26%), Positives = 44/105 (41%), Gaps = 6/105 (5%)
Query: 4 RIGKGHFGTVYNG--NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
++G G FG V+ G N H +VA+K L + EAF E ++ +H LV
Sbjct: 13 KLGAGQFGEVWMGYYNGHTKVAIKSLKQGSMSP----EAFLAEANLMKQLQHPRLVRLYA 68
Query: 62 ACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQ 106
+ P I NG + K +NK+ + QI++
Sbjct: 69 VVTQEPIYIITEYMENGSLVDFLKTPEGIKLTINKLIDMAAQIAE 113
Score = 31.7 bits (72), Expect = 0.10
Identities = 10/25 (40%), Positives = 14/25 (56%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
+++ CW KP +RP F L LE
Sbjct: 234 ELMRLCWKEKPEERPTFEYLRSVLE 258
>gnl|CDD|173762 cd08222, STKc_Nek11, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 11. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 11 (Nek11)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek11 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Nek11 is involved, through direct
phosphorylation, in regulating the degradation of Cdc25A
(Cell Division Cycle 25 homolog A), which plays a role
in cell cycle progression and in activating cyclin
dependent kinases. Nek11 is activated by CHK1
(CHeckpoint Kinase 1) and may be involved in the G2/M
checkpoint. Nek11 may also play a role in the S-phase
checkpoint as well as in DNA replication and genotoxic
stress responses.
Length = 260
Score = 34.1 bits (78), Expect = 0.019
Identities = 38/144 (26%), Positives = 61/144 (42%), Gaps = 26/144 (18%)
Query: 4 RIGKGHFGTVY---NGNWHGEVAVKVLD---VDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
R+GKG FGTVY + E +KVL V L+ +T +A E K H +V
Sbjct: 7 RLGKGSFGTVYLVKDKKAVAEERLKVLKEIPVGELNPNETVQA-NQEAQLLSKLDHPAIV 65
Query: 58 LFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKP 117
F + ++ I+T C G L + K G+ +S++ + + W
Sbjct: 66 KFHASFLERDAFCIITEYCEGRDLDCKLEELKHT---------GKTLSENQVCE-W---- 111
Query: 118 SDRPDFITLMKSLEKLPKKRILAR 141
FI L+ + + ++RIL R
Sbjct: 112 -----FIQLLLGVHYMHQRRILHR 130
>gnl|CDD|133204 cd05073, PTKc_Hck, Catalytic domain of the Protein Tyrosine Kinase,
Hematopoietic cell kinase. Protein Tyrosine Kinase
(PTK) family; Hematopoietic cell kinase (Hck); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Hck is a member of the Src subfamily of proteins, which
are cytoplasmic (or non-receptor) tyr kinases. Src
kinases contain an N-terminal SH4 domain with a
myristoylation site, followed by SH3 and SH2 domains, a
tyr kinase domain, and a regulatory C-terminal region
containing a conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival, and
differentiation. Hck is present in myeloid and lymphoid
cells that play a role in the development of cancer. It
may be important in the oncogenic signaling of the
protein Tel-Abl, which induces a chronic myelogenous
leukemia (CML)-like disease. Hck also acts as a negative
regulator of granulocyte colony-stimulating factor
(G-CSF)-induced proliferation of granulocytic
precursors, suggesting a possible role in the
development of acute myeloid leukemia (AML). In
addition, Hck is essential in regulating the
degranulation of polymorphonuclear leukocytes (PMNs).
Genetic polymorphisms affect the expression level of
Hck, which affects PMN mediator release and influences
the development of chronic obstructive pulmonary disease
(COPD).
Length = 260
Score = 33.8 bits (77), Expect = 0.019
Identities = 8/25 (32%), Positives = 16/25 (64%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
+++M+CW +P +RP F + L+
Sbjct: 234 NIMMRCWKNRPEERPTFEYIQSVLD 258
Score = 29.2 bits (65), Expect = 0.69
Identities = 20/66 (30%), Positives = 30/66 (45%), Gaps = 6/66 (9%)
Query: 4 RIGKGHFGTVYNG--NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
++G G FG V+ N H +VAVK + + + EAF E + +H+ LV
Sbjct: 13 KLGAGQFGEVWMATYNKHTKVAVKTMKPGSM----SVEAFLAEANVMKTLQHDKLVKLHA 68
Query: 62 ACMKPP 67
K P
Sbjct: 69 VVTKEP 74
>gnl|CDD|133212 cd05081, PTKc_Jak2_Jak3_rpt2, Catalytic (repeat 2) domain of the
Protein Tyrosine Kinases, Janus kinases 2 and 3.
Protein Tyrosine Kinase (PTK) family; Janus kinase 2
(Jak2) and Jak3; catalytic (c) domain (repeat 2). The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Jak2 and
Jak3 are members of the Janus kinase (Jak) subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal FERM domain, followed
by a Src homology 2 (SH2) domain, a pseudokinase
domain, and a C-terminal catalytic tyr kinase domain.
Jaks are crucial for cytokine receptor signaling. They
are activated by autophosphorylation upon
cytokine-induced receptor aggregation, and subsequently
trigger downstream signaling events such as the
phosphorylation of signal transducers and activators of
transcription (STATs). Jak2 is widely expressed in many
tissues while Jak3 is expressed only in hematopoietic
cells. Jak2 is essential for the signaling of
hormone-like cytokines such as growth hormone,
erythropoietin, thrombopoietin, and prolactin, as well
as some IFNs and cytokines that signal through the IL-3
and gp130 receptors. Jak3 binds the shared receptor
subunit common gamma chain and thus, is essential in
the signaling of cytokines that use it such as IL-2,
IL-4, IL-7, IL-9, IL-15, and IL-21. Disruption of Jak2
in mice results in an embryonic lethal phenotype with
multiple defects including erythropoietic and cardiac
abnormalities. It is the only Jak gene that results in
a lethal phenotype when disrupted in mice. A mutation
in the pseudokinase domain of Jak2, V617F, is present
in many myeloproliferative diseases, including almost
all patients with polycythemia vera, and 50% of
patients with essential thrombocytosis and
myelofibrosis. Jak3 is important in lymphoid
development and myeloid cell differentiation.
Inactivating mutations in Jak3 have been reported in
humans with severe combined immunodeficiency (SCID).
Length = 284
Score = 34.0 bits (78), Expect = 0.019
Identities = 21/66 (31%), Positives = 34/66 (51%), Gaps = 10/66 (15%)
Query: 5 IGKGHFGTV----YN--GNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+GKG+FG+V Y+ + GE VAVK L + F+ E+ + +H+N+V
Sbjct: 12 LGKGNFGSVELCRYDPLQDNTGEVVAVKKLQ---HSTAEHLRDFEREIEILKSLQHDNIV 68
Query: 58 LFMGAC 63
+ G C
Sbjct: 69 KYKGVC 74
Score = 30.9 bits (70), Expect = 0.19
Identities = 11/26 (42%), Positives = 15/26 (57%), Gaps = 1/26 (3%)
Query: 109 LMK-CWSYKPSDRPDFITLMKSLEKL 133
+MK CW+ PS RP F L +E +
Sbjct: 258 IMKECWNNDPSQRPSFSELALQVEAI 283
>gnl|CDD|173758 cd08218, STKc_Nek1, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene
A-related kinase 1. Serine/Threonine Kinases (STKs),
Never In Mitosis gene A (NIMA)-related kinase 1 (Nek1)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek1 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Nek1 is associated with
centrosomes throughout the cell cycle. It is involved
in the formation of primary cilium and in the
maintenance of centrosomes. It cycles through the
nucleus and may be capable of relaying signals between
the cilium and the nucleus. Nek1 is implicated in the
development of polycystic kidney disease, which is
characterized by benign polycystic tumors formed by
abnormal overgrowth of renal epithelial cells. It
appears also to be involved in DNA damage response, and
may be important for both correct DNA damage checkpoint
activation and DNA repair.
Length = 256
Score = 33.7 bits (77), Expect = 0.023
Identities = 22/86 (25%), Positives = 41/86 (47%), Gaps = 4/86 (4%)
Query: 4 RIGKGHFGT---VYNGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
+IG+G FG V + + +K +++ + ++ E+ K EV +H N+V +
Sbjct: 7 KIGEGSFGKAILVKSKEDGKQYVIKEINISKMSPKEREESRK-EVAVLSNMKHPNIVQYQ 65
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIH 86
+ + +L IV C G LY I+
Sbjct: 66 ESFEENGNLYIVMDYCEGGDLYKKIN 91
>gnl|CDD|132972 cd06641, STKc_MST3, Catalytic domain of the Protein
Serine/Threonine Kinase, Mammalian Ste20-like protein
kinase 3. Serine/threonine kinases (STKs), mammalian
Ste20-like protein kinase 3 (MST3) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MST3 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. MST3 phosphorylates the STK
NDR and may play a role in cell cycle progression and
cell morphology. It may also regulate paxillin and
consequently, cell migration. MST3 is present in human
placenta, where it plays an essential role in the
oxidative stress-induced apoptosis of trophoblasts in
normal spontaneous delivery. Dysregulation of
trophoblast apoptosis may result in pregnancy
complications such as preeclampsia and intrauterine
growth retardation.
Length = 277
Score = 33.9 bits (77), Expect = 0.025
Identities = 22/79 (27%), Positives = 39/79 (49%), Gaps = 5/79 (6%)
Query: 3 DRIGKGHFGTVYNG---NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
++IGKG FG V+ G VA+K++D++ +DE E + E+T + + +
Sbjct: 10 EKIGKGSFGEVFKGIDNRTQKVVAIKIIDLEEAEDE--IEDIQQEITVLSQCDSPYVTKY 67
Query: 60 MGACMKPPHLAIVTSKCNG 78
G+ +K L I+ G
Sbjct: 68 YGSYLKDTKLWIIMEYLGG 86
>gnl|CDD|132943 cd06612, STKc_MST1_2, Catalytic domain of the Protein
Serine/Threonine Kinases, Mammalian Ste20-like protein
kinase 1 and 2. Serine/threonine kinases (STKs),
mammalian Ste20-like protein kinase 1 (MST1) and MST2
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MST1/2 subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. This subfamily is composed
of MST1, MST2, and related proteins including
Drosophila Hippo and Dictyostelium discoideum Krs1
(kinase responsive to stress 1). MST1/2 and Hippo are
involved in a conserved pathway that governs cell
contact inhibition, organ size control, and tumor
development. MST1 activates the mitogen-activated
protein kinases (MAPKs) p38 and c-Jun N-terminal kinase
(JNK) through MKK7 (a MAPK kinase) and MEKK1 (a MAPK
kinase kinase) by acting as a MAPK kinase kinase kinase
(MAPKKKK). Activation of JNK by MST1 leads to caspase
activation and apoptosis. MST1 has also been implicated
in cell proliferation and differentiation. Krs1 may
regulate cell growth arrest and apoptosis in response
to cellular stress.
Length = 256
Score = 33.4 bits (77), Expect = 0.028
Identities = 18/77 (23%), Positives = 34/77 (44%), Gaps = 8/77 (10%)
Query: 5 IGKGHFGTVYNGNWHG---EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
+G+G +G+VY VA+KV+ V+ + + E++ ++ +V + G
Sbjct: 11 LGEGSYGSVYKAIHKETGQVVAIKVVPVE-----EDLQEIIKEISILKQCDSPYIVKYYG 65
Query: 62 ACMKPPHLAIVTSKCNG 78
+ K L IV C
Sbjct: 66 SYFKNTDLWIVMEYCGA 82
>gnl|CDD|132984 cd06653, STKc_MEKK3_like_1, Catalytic domain of MAP/ERK kinase
kinase 3-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase
3 (MEKK3)-like subfamily, catalytic (c) domain,
functionally uncharacterized subgroup 1. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MEKK3-like subfamily is part of a larger superfamily
that includes the catalytic domains of other protein
STKs, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. The MEKK3-like subfamily is
composed of MEKK3, MEKK2, and related proteins, all
containing an N-terminal PB1 domain, which mediates
oligomerization, and a C-terminal catalytic domain.
MEKK2 and MEKK3 are mitogen-activated protein kinase
(MAPK) kinase kinases (MAPKKKs or MKKKs or MAP3Ks),
proteins that phosphorylate and activate MAPK kinases
(MAPKKs or MKKs or MAP2Ks), which in turn phosphorylate
and activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. MEKK2 and MEKK3 activate MEK5
(also called MKK5), which activates extracellular
signal-regulated kinase 5 (ERK5). The ERK5 cascade
plays roles in promoting cell proliferation,
differentiation, neuronal survival, and
neuroprotection. MEKK3 plays an essential role in
embryonic angiogenesis and early heart development.
MEKK2 and MEKK3 can also activate the MAPKs, c-Jun
N-terminal kinase (JNK) and p38, through their
respective MAPKKs.
Length = 264
Score = 33.5 bits (76), Expect = 0.028
Identities = 22/72 (30%), Positives = 38/72 (52%), Gaps = 6/72 (8%)
Query: 1 MGDRIGKGHFGTV---YNGNWHGEVAVKVL--DVDYLDDEKTWEAFKLEVTTFRKTRHEN 55
+G +G+G FG V Y+ + E+AVK + D D + K A + E+ + RH+
Sbjct: 6 LGKLLGRGAFGEVYLCYDADTGRELAVKQVPFDPDSQETSKEVNALECEIQLLKNLRHDR 65
Query: 56 LVLFMGACMKPP 67
+V + G C++ P
Sbjct: 66 IVQYYG-CLRDP 76
>gnl|CDD|173730 cd06624, STKc_ASK, Catalytic domain of the Protein
Serine/Threonine Kinase, Apoptosis signal-regulating
kinase. Serine/threonine kinases (STKs), Apoptosis
signal-regulating kinase (ASK) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The ASK subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Subfamily members are
mitogen-activated protein kinase (MAPK) kinase kinases
(MAPKKKs or MKKKs or MAP3Ks) and include ASK1, ASK2,
and MAPKKK15. MAPKKKs phosphorylate and activate MAPK
kinases (MAPKKs or MKKs or MAP2Ks), which in turn
phosphorylate and activate MAPKs during signaling
cascades that are important in mediating cellular
responses to extracellular signals. ASK1 (also called
MAPKKK5) functions in the c-Jun N-terminal kinase (JNK)
and p38 MAPK signaling pathways by directly activating
their respective MAPKKs, MKK4/MKK7 and MKK3/MKK6. It
plays important roles in cytokine and stress responses,
as well as in reactive oxygen species (ROS)-mediated
cellular responses. ASK1 is implicated in various
diseases mediated by oxidative stress including
inschemic heart disease, hypertension, vessel injury,
brain ischemia, Fanconi anemia, asthma, and pulmonary
edema, among others. ASK2 (also called MAPKKK6)
functions only in a heteromeric complex with ASK1, and
can activate ASK1 by direct phosphorylation. The
function of MAPKKK15 is still unknown.
Length = 268
Score = 33.3 bits (76), Expect = 0.032
Identities = 18/83 (21%), Positives = 37/83 (44%), Gaps = 4/83 (4%)
Query: 2 GDRI--GKGHFGTVYNG-NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
G+R+ GKG +G VY + +V + + ++ D + E+ +H N+V
Sbjct: 11 GERVVLGKGTYGIVYAARDLSTQVRIAIKEIPERDSRYV-QPLHEEIALHSYLKHRNIVQ 69
Query: 59 FMGACMKPPHLAIVTSKCNGHTL 81
++G+ + I + G +L
Sbjct: 70 YLGSDSENGFFKIFMEQVPGGSL 92
>gnl|CDD|132964 cd06633, STKc_TAO3, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 3.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 3 (TAO3) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
TAO3 is also known as JIK (JNK inhibitory kinase) or KFC
(kinase from chicken). It specifically activates c-Jun
N-terminal kinase (JNK), presumably by phosphorylating
and activating MKK4/MKK7. In Saccharomyces cerevisiae,
TAO3 is a component of the RAM (regulation of Ace2p
activity and cellular morphogenesis) signaling pathway.
TAO3 is upregulated in retinal ganglion cells after
axotomy, and may play a role in apoptosis.
Length = 313
Score = 33.1 bits (75), Expect = 0.044
Identities = 22/77 (28%), Positives = 34/77 (44%), Gaps = 3/77 (3%)
Query: 5 IGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
IG G FG VY N + + VAVK + + W+ EV ++ +H N + + G
Sbjct: 29 IGHGSFGAVYFATNSHTNEVVAVKKMSYSGKQTNEKWQDIIKEVKFLQQLKHPNTIEYKG 88
Query: 62 ACMKPPHLAIVTSKCNG 78
+K +V C G
Sbjct: 89 CYLKEHTAWLVMEYCLG 105
>gnl|CDD|132960 cd06629, STKc_MAPKKK_Bck1_like, Catalytic domain of fungal
Bck1-like MAP Kinase Kinase Kinases. Serine/threonine
kinases (STKs), mitogen-activated protein kinase (MAPK)
kinase kinase (MAPKKK) subfamily, fungal Bck1-like
proteins, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
MAPKKK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Members of this group
include the MAPKKKs Saccharomyces cerevisiae Bck1 and
Schizosaccharomyces pombe Mkh1, and related proteins.
MAPKKKs phosphorylate and activate MAPK kinases (MAPKKs
or MKKs or MAP2Ks), which in turn phosphorylate and
activate MAPKs during signaling cascades that are
important in mediating cellular responses to
extracellular signals. Budding yeast Bck1 is part of
the cell integrity MAPK pathway, which is activated by
stresses and aggressions to the cell wall. The MAPKKK
Bck1, MAPKKs Mkk1 and Mkk2, and the MAPK Slt2 make up
the cascade that is important in the maintenance of
cell wall homeostasis. Fission yeast Mkh1 is involved
in MAPK cascades regulating cell morphology, cell wall
integrity, salt resistance, and filamentous growth in
response to stress.
Length = 272
Score = 32.5 bits (74), Expect = 0.058
Identities = 24/81 (29%), Positives = 40/81 (49%), Gaps = 12/81 (14%)
Query: 2 GDRIGKGHFGTVY---NGNWHGEV-AVKVLDVDYL----DDEK---TWEAFKLEVTTFRK 50
G+ IGKG +G VY N GE+ AVK +++ D + +A + E+ T +
Sbjct: 6 GELIGKGTYGRVYLALNVT-TGEMMAVKQVELPATIAGRHDSRQKDMVKALRSEIETLKD 64
Query: 51 TRHENLVLFMGACMKPPHLAI 71
H N+V ++G +L+I
Sbjct: 65 LDHLNIVQYLGFETTEEYLSI 85
>gnl|CDD|133174 cd05042, PTKc_Aatyk, Catalytic domain of the Protein Tyrosine
Kinases, Apoptosis-associated tyrosine kinases.
Protein Tyrosine Kinase (PTK) family;
Apoptosis-associated tyrosine kinase (Aatyk) subfamily;
catalytic (c) domain. The Aatyk subfamily is also
referred to as the lemur tyrosine kinase (Lmtk)
subfamily. It consists of Aatyk1 (Lmtk1), Aatyk2
(Lmtk2, Brek), Aatyk3 (Lmtk3), and similar proteins.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Aatyk
proteins are mostly receptor tyr kinases (RTKs)
containing a transmembrane segment and a long
C-terminal cytoplasmic tail with a catalytic domain.
Aatyk1 does not contain a transmembrane segment and is
a cytoplasmic (or nonreceptor) kinase. Aatyk proteins
are classified as tyr kinases based on overall sequence
similarity and the phylogenetic tree. However, analysis
of catalytic residues suggests that Aatyk proteins may
be multispecific kinases, functioning also as
serine/threonine kinases. They are involved in neural
differentiation, nerve growth factor (NGF) signaling,
apoptosis, and spermatogenesis.
Length = 269
Score = 32.6 bits (74), Expect = 0.060
Identities = 25/79 (31%), Positives = 34/79 (43%), Gaps = 7/79 (8%)
Query: 3 DRIGKGHFGTVYNGNWH-----GEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
D IG G FG V G H V VK L DE+ F EV +R+ H N++
Sbjct: 1 DEIGNGWFGKVLLGEAHRGMSKARVVVKELRASATPDEQ--LLFLQEVQPYRELNHPNVL 58
Query: 58 LFMGACMKPPHLAIVTSKC 76
+G C++ +V C
Sbjct: 59 QCLGQCIESIPYLLVLEFC 77
>gnl|CDD|173734 cd07830, STKc_MAK_like, Catalytic domain of Male germ
cell-Associated Kinase-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Male germ
cell-Associated Kinase (MAK)-like subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The MAK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. This subfamily is composed
of human MAK and MAK-related kinase (MRK),
Saccharomyces cerevisiae Ime2p, Schizosaccharomyces
pombe Mei4-dependent protein 3 (Mde3) and Pit1,
Caenorhabditis elegans dyf-5, Arabidopsis thaliana MHK,
and similar proteins. These proteins play important
roles during meiosis. MAK is highly expressed in
testicular cells specifically in the meiotic phase, but
is not essential for spermatogenesis and fertility. It
functions as a coactivator of the androgen receptor in
prostate cells. MRK, also called Intestinal Cell Kinase
(ICK), is expressed ubiquitously, with highest
expression in the ovary and uterus. A missense mutation
in MRK causes endocrine-cerebro-osteodysplasia (ECO),
suggesting that this protein plays an important role in
the development of many organs. MAK and MRK may be
involved in regulating cell cycle and cell fate. Ime2p
is a meiosis-specific kinase that is important during
meiotic initiation and during the later stages of
meiosis. Mde3 functions downstream of the transcription
factor Mei-4 which is essential for meiotic prophase I.
Length = 283
Score = 32.5 bits (75), Expect = 0.067
Identities = 21/63 (33%), Positives = 31/63 (49%), Gaps = 10/63 (15%)
Query: 1 MGDRIGKGHFGTVYNGNWH--GE-VAVKVLDVDYLDDEKTW-EAFKL-EVTTFRK-TRHE 54
+ ++G G FG+VY GE VA+K + + +W E L EV + RK H
Sbjct: 3 VIKQLGDGTFGSVYLARNKETGELVAIKKMKKKF----YSWEECMNLREVKSLRKLNEHP 58
Query: 55 NLV 57
N+V
Sbjct: 59 NIV 61
>gnl|CDD|133234 cd05103, PTKc_VEGFR2, Catalytic domain of the Protein Tyrosine
Kinase, Vascular Endothelial Growth Factor Receptor 2.
Protein Tyrosine Kinase (PTK) family; Vascular
Endothelial Growth Factor Receptor 2 (VEGFR2);
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. VEGFR2 (or Flk1) is a
member of the VEGFR subfamily of proteins, which are
receptor tyr kinases (RTKs) containing an extracellular
ligand-binding region with seven immunoglobulin
(Ig)-like domains, a transmembrane segment, and an
intracellular catalytic domain. The binding of VEGFRs
to their ligands, the VEGFs, leads to receptor
dimerization, activation, and intracellular signaling.
The carboxyl terminus of VEGFR2 plays an important role
in its autophosphorylation and activation. VEGFR2 binds
the ligands VEGFA, VEGFC, VEGFD and VEGFE. VEGFR2
signaling is implicated in all aspects of normal and
pathological vascular endothelial cell biology. It
induces a variety of cellular effects including
migration, survival, and proliferation. It is critical
in regulating embryonic vascular development and
angiogenesis. VEGFR2 is the major signal transducer in
pathological angiogenesis including cancer and diabetic
retinopathy, and is a target for inhibition in cancer
therapy.
Length = 343
Score = 32.3 bits (73), Expect = 0.071
Identities = 26/83 (31%), Positives = 35/83 (42%), Gaps = 13/83 (15%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTR 52
+G +G+G FG V + G VAVK+L E A E+
Sbjct: 11 LGKPLGRGAFGQVIEADAFGIDKTATCRTVAVKMLKEGATHSE--HRALMSELKILIHIG 68
Query: 53 HE-NLVLFMGACMKP--PHLAIV 72
H N+V +GAC KP P + IV
Sbjct: 69 HHLNVVNLLGACTKPGGPLMVIV 91
Score = 26.5 bits (58), Expect = 6.7
Identities = 10/25 (40%), Positives = 15/25 (60%)
Query: 109 LMKCWSYKPSDRPDFITLMKSLEKL 133
++ CW +PS RP F L++ L L
Sbjct: 315 MLDCWHGEPSQRPTFSELVEHLGNL 339
>gnl|CDD|133219 cd05088, PTKc_Tie2, Catalytic domain of the Protein Tyrosine
Kinase, Tie2. Protein Tyrosine Kinase (PTK) family;
Tie2; catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tie2 is a receptor tyr
kinase (RTK) containing an extracellular region, a
transmembrane segment, and an intracellular catalytic
domain. The extracellular region contains an
immunoglobulin (Ig)-like domain, three epidermal growth
factor (EGF)-like domains, a second Ig-like domain, and
three fibronectin type III repeats. Tie2 is expressed
mainly in endothelial cells and hematopoietic stem
cells. It is also found in a subset of tumor-associated
monocytes and eosinophils. The angiopoietins (Ang-1 to
Ang-4) serve as ligands for Tie2. The binding of Ang-1
to Tie2 leads to receptor autophosphorylation and
activation, promoting cell migration and survival. In
contrast, Ang-2 binding to Tie2 does not result in the
same response, suggesting that Ang-2 may function as an
antagonist. Tie2 signaling plays key regulatory roles in
vascular integrity and quiescence, and in inflammation.
Length = 303
Score = 32.3 bits (73), Expect = 0.073
Identities = 11/31 (35%), Positives = 21/31 (67%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKLPKKR 137
D++ +CW KP +RP F ++ SL ++ ++R
Sbjct: 254 DLMRQCWREKPYERPSFAQILVSLNRMLEER 284
>gnl|CDD|133211 cd05080, PTKc_Tyk2_rpt2, Catalytic (repeat 2) domain of the
Protein Tyrosine Kinase, Tyrosine kinase 2. Protein
Tyrosine Kinase (PTK) family; Tyrosine kinase 2 (Tyk2);
catalytic (c) domain (repeat 2). The PTKc family is
part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Tyk2 is
a member of the Janus kinase (Jak) subfamily of
proteins, which are cytoplasmic (or nonreceptor) tyr
kinases containing an N-terminal FERM domain, followed
by a Src homology 2 (SH2) domain, a pseudokinase
domain, and a C-terminal tyr kinase catalytic domain.
Jaks are crucial for cytokine receptor signaling. They
are activated by autophosphorylation upon
cytokine-induced receptor aggregation, and subsequently
trigger downstream signaling events such as the
phosphorylation of signal transducers and activators of
transcription (STATs). Tyk2 is widely expressed in many
tissues. It is involved in signaling via the cytokine
receptors IFN-alphabeta, IL-6, IL-10, IL-12, IL-13, and
IL-23. It mediates cell surface urokinase receptor
(uPAR) signaling and plays a role in modulating
vascular smooth muscle cell (VSMC) functional behavior
in response to injury. Tyk2 is also important in
dendritic cell function and T helper (Th)1 cell
differentiation. A homozygous mutation of Tyk2 was
found in a patient with hyper-IgE syndrome (HIES), a
primary immunodeficiency characterized by recurrent
skin abscesses, pneumonia, and elevated serum IgE. This
suggests that Tyk2 may play important roles in multiple
cytokine signaling involved in innate and adaptive
immunity.
Length = 283
Score = 32.2 bits (73), Expect = 0.078
Identities = 21/66 (31%), Positives = 32/66 (48%), Gaps = 9/66 (13%)
Query: 5 IGKGHFGTVY------NGNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+G+GHFG V + GE VAVK L + ++ +K E+ + HEN+V
Sbjct: 12 LGEGHFGKVSLYCYDPANDGTGEMVAVKTLKRE--CGQQNTSGWKKEINILKTLYHENIV 69
Query: 58 LFMGAC 63
+ G C
Sbjct: 70 KYKGCC 75
>gnl|CDD|173642 cd05075, PTKc_Axl, Catalytic domain of the Protein Tyrosine Kinase,
Axl. Protein Tyrosine Kinase (PTK) family; Axl;
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Axl is a member of the
Axl subfamily, which is composed of receptor tyr kinases
(RTKs) containing an extracellular ligand-binding region
with two immunoglobulin-like domains followed by two
fibronectin type III repeats, a transmembrane segment,
and an intracellular catalytic domain. Binding to their
ligands, Gas6 and protein S, leads to receptor
dimerization, autophosphorylation, activation, and
intracellular signaling. Axl is widely expressed in a
variety of organs and cells including epithelial,
mesenchymal, hematopoietic, as well as non-transformed
cells. Axl signaling is important in many cellular
functions such as survival, anti-apoptosis,
proliferation, migration, and adhesion. Axl was
originally isolated from patients with chronic
myelogenous leukemia and a chronic myeloproliferative
disorder. Axl is overexpressed in many human cancers
including colon, squamous cell, thyroid, breast, and
lung carcinomas.
Length = 272
Score = 32.3 bits (73), Expect = 0.080
Identities = 12/25 (48%), Positives = 14/25 (56%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEK 132
++ CW P DRP F TL LEK
Sbjct: 246 LMSSCWLLNPKDRPSFETLRCELEK 270
Score = 29.6 bits (66), Expect = 0.68
Identities = 18/70 (25%), Positives = 34/70 (48%), Gaps = 6/70 (8%)
Query: 1 MGDRIGKGHFGTVYNGNWHGE-----VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHEN 55
+G +G+G FG+V G + + VAVK + + + E F E ++ H N
Sbjct: 3 LGKTLGEGEFGSVMEGQLNQDDSILKVAVKTMKIAICTRSEM-EDFLSEAVCMKEFDHPN 61
Query: 56 LVLFMGACMK 65
++ +G C++
Sbjct: 62 VMRLIGVCLQ 71
>gnl|CDD|133167 cd05035, PTKc_Axl_like, Catalytic Domain of Axl-like Protein
Tyrosine Kinases. Protein Tyrosine Kinase (PTK) family;
Axl subfamily; catalytic (c) domain. The PTKc family is
part of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). The Axl subfamily
consists of Axl, Tyro3 (or Sky), Mer (or Mertk), and
similar proteins. PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Axl subfamily members
are receptor tyr kinases (RTKs) containing an
extracellular ligand-binding region with two
immunoglobulin-like domains followed by two fibronectin
type III repeats, a transmembrane segment, and an
intracellular catalytic domain. Binding to their
ligands, Gas6 and protein S, leads to receptor
dimerization, autophosphorylation, activation, and
intracellular signaling. Axl subfamily members are
implicated in a variety of cellular effects including
survival, proliferation, migration, and phagocytosis.
They are also associated with several types of cancer as
well as inflammatory, autoimmune, vascular, and kidney
diseases. Mer is named after its original reported
expression pattern (monocytes, epithelial, and
reproductive tissues). It is required for the ingestion
of apoptotic cells by phagocytes such as macrophages,
retinal pigment epithelial cells, and dendritic cells.
Mer is also important in maintaining immune homeostasis.
Length = 273
Score = 32.1 bits (73), Expect = 0.088
Identities = 11/27 (40%), Positives = 15/27 (55%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
D++ CW P DRP F L + LE +
Sbjct: 246 DLMYSCWRADPKDRPTFTKLREVLENI 272
Score = 31.3 bits (71), Expect = 0.16
Identities = 19/71 (26%), Positives = 32/71 (45%), Gaps = 7/71 (9%)
Query: 1 MGDRIGKGHFGTVYNGNWH------GEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHE 54
+G +G+G FG+V G +VAVK + +D + E F E + H
Sbjct: 3 LGKILGEGEFGSVMEGQLSQDDGSQLKVAVKTMKLDIHTYSEI-EEFLSEAACMKDFDHP 61
Query: 55 NLVLFMGACMK 65
N++ +G C +
Sbjct: 62 NVMKLIGVCFE 72
>gnl|CDD|133237 cd05106, PTKc_CSF-1R, Catalytic domain of the Protein Tyrosine
Kinase, Colony-Stimulating Factor-1 Receptor. Protein
Tyrosine Kinase (PTK) family; Colony-Stimulating
Factor-1 Receptor (CSF-1R); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. CSF-1R,
also called c-Fms, is a member of the Platelet Derived
Growth Factor Receptor (PDGFR) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular ligand-binding region with five
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding of
CSF-1R to its ligand, CSF-1, leads to receptor
dimerization, trans phosphorylation and activation, and
intracellular signaling. CSF-1R signaling is critical in
the regulation of macrophages and osteoclasts. It leads
to increases in gene transcription and protein
translation, and induces cytoskeletal remodeling. CSF-1R
signaling leads to a variety of cellular responses
including survival, proliferation, and differentiation
of target cells. It plays an important role in innate
immunity, tissue development and function, and the
pathogenesis of some diseases including atherosclerosis
and cancer. CSF-1R signaling is also implicated in
mammary gland development during pregnancy and
lactation. Aberrant CSF-1/CSF-1R expression correlates
with tumor cell invasiveness, poor clinical prognosis,
and bone metastasis in breast cancer. Although the
structure of the human CSF-1R catalytic domain is known,
it is excluded from this specific alignment model
because it contains a deletion in its sequence.
Length = 374
Score = 32.1 bits (73), Expect = 0.088
Identities = 33/117 (28%), Positives = 45/117 (38%), Gaps = 14/117 (11%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKT- 51
G +G G FG V G VAVK+L DE+ EA E+
Sbjct: 42 FGKTLGAGAFGKVVEATAFGLGKEDNVLRVAVKMLKASAHTDER--EALMSELKILSHLG 99
Query: 52 RHENLVLFMGACMKP-PHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQD 107
+H+N+V +GAC P L I C G L N K + LN + + +
Sbjct: 100 QHKNIVNLLGACTHGGPVLVITEYCCYGDLL--NFLRKKAETFLNFVMALPEISETS 154
Score = 26.7 bits (59), Expect = 5.3
Identities = 13/47 (27%), Positives = 25/47 (53%), Gaps = 9/47 (19%)
Query: 96 KMSTVGQQISQDV--------LMK-CWSYKPSDRPDFITLMKSLEKL 133
KM G Q+S+ +MK CW+ +P++RP F + + +++
Sbjct: 326 KMVKRGYQMSRPDFAPPEIYSIMKMCWNLEPTERPTFSQISQLIQRQ 372
>gnl|CDD|173630 cd05044, PTKc_c-ros, Catalytic domain of the Protein Tyrosine
Kinase, C-ros. Protein Tyrosine Kinases (PTK) family;
C-ros and Drosophila Sevenless proteins; catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. The
proto-oncogene c-ros encodes an orphan receptor tyr
kinase (RTK) with an unknown ligand. RTKs contain an
extracellular ligand-binding domain, a transmembrane
region, and an intracellular tyr kinase domain. RTKs
are usually activated through ligand binding, which
causes dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. C-ros is
expressed in embryonic cells of the kidney, intestine
and lung, but disappears soon after birth. It persists
only in the adult epididymis. Male mice bearing
inactive mutations of c-ros lack the initial segment of
the epididymis and are infertile. The Drosophila
protein, Sevenless, is required for the specification
of the R7 photoreceptor cell during eye development.
Length = 269
Score = 32.1 bits (73), Expect = 0.088
Identities = 22/69 (31%), Positives = 26/69 (37%), Gaps = 11/69 (15%)
Query: 5 IGKGHFGTVYNGNWHGE---------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHEN 55
+G G FG VY G VAVK L D EK F E H N
Sbjct: 3 LGSGAFGEVYEGTATDILGPGSGPIRVAVKTLRKGATDQEKK--EFLKEAHLMSNFNHPN 60
Query: 56 LVLFMGACM 64
+V +G C+
Sbjct: 61 IVKLLGVCL 69
>gnl|CDD|173764 cd08224, STKc_Nek6_Nek7, Catalytic domain of the Protein
Serine/Threonine Kinases, Never In Mitosis gene
A-related kinase 6 and 7. Serine/Threonine Kinases
(STKs), Never In Mitosis gene A (NIMA)-related kinase 6
(Nek6) and Nek7 subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The Nek6/7 subfamily is part of a family of 11 different
Neks (Nek1-11) that are involved in cell cycle control.
The Nek family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Nek6 and Nek7 are the shortest Neks,
consisting only of the catalytic domain and a very short
N-terminal extension. They show distinct expression
patterns and both appear to be downstream substrates of
Nek9. They are required for mitotic spindle formation
and cytokinesis. They may also be regulators of the p70
ribosomal S6 kinase.
Length = 267
Score = 32.0 bits (73), Expect = 0.089
Identities = 34/141 (24%), Positives = 59/141 (41%), Gaps = 22/141 (15%)
Query: 4 RIGKGHFGTVYNG--NWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
+IGKG F VY G VA+K + + + D K + E+ ++ H N++ ++
Sbjct: 9 KIGKGQFSVVYKAICLLDGRVVALKKVQIFEMMDAKARQDCLKEIDLLKQLDHPNVIKYL 68
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDR 120
+ ++ L IV + L I +K++ L T+ W Y
Sbjct: 69 ASFIENNELNIVLELADAGDLSRMIKHFKKQKRLIPERTI------------WKY----- 111
Query: 121 PDFITLMKSLEKLPKKRILAR 141
F+ L +LE + KRI+ R
Sbjct: 112 --FVQLCSALEHMHSKRIMHR 130
>gnl|CDD|133194 cd05063, PTKc_EphR_A2, Catalytic domain of the Protein Tyrosine
Kinase, Ephrin Receptor A2. Protein Tyrosine Kinase
(PTK) family; Ephrin Receptor (EphR) subfamily; EphA2
receptor; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). In general, class EphA receptors bind
GPI-anchored ephrin-A ligands. There are ten vertebrate
EphA receptors (EphA1-10), which display promiscuous
interactions with six ephrin-A ligands. EphRs contain
an ephrin binding domain and two fibronectin repeats
extracellularly, a transmembrane segment, and a
cytoplasmic tyr kinase domain. Binding of the ephrin
ligand to EphR requires cell-cell contact since both
are anchored to the plasma membrane. The resulting
downstream signals occur bidirectionally in both
EphR-expressing cells (forward signaling) and
ephrin-expressing cells (reverse signaling).
Ephrin/EphR interaction mainly results in cell-cell
repulsion or adhesion, making it important in neural
development and plasticity, cell morphogenesis,
cell-fate determination, embryonic development, tissue
patterning, and angiogenesis. The EphA2 receptor is
overexpressed in tumor cells and tumor blood vessels in
a variety of cancers including breast, prostate, lung,
and colon. As a result, it is an attractive target for
drug design since its inhibition could affect several
aspects of tumor progression.
Length = 268
Score = 31.9 bits (72), Expect = 0.091
Identities = 22/75 (29%), Positives = 30/75 (40%), Gaps = 8/75 (10%)
Query: 5 IGKGHFGTVYNGNW------HGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
IG G FG V+ G VA+K L Y EK + F E + + H N++
Sbjct: 13 IGAGEFGEVFRGILKMPGRKEVAVAIKTLKPGY--TEKQRQDFLSEASIMGQFSHHNIIR 70
Query: 59 FMGACMKPPHLAIVT 73
G K I+T
Sbjct: 71 LEGVVTKFKPAMIIT 85
Score = 27.6 bits (61), Expect = 2.7
Identities = 8/26 (30%), Positives = 17/26 (65%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKL 133
++++CW + RP F+ ++ L+KL
Sbjct: 242 LMLQCWQQDRARRPRFVDIVNLLDKL 267
>gnl|CDD|173631 cd05045, PTKc_RET, Catalytic domain of the Protein Tyrosine Kinase,
REarranged during Transfection protein. Protein
Tyrosine Kinase (PTK) family; RET (REarranged during
Transfection) protein; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. RET is a
receptor tyr kinase (RTK) containing an extracellular
region with four cadherin-like repeats, a
calcium-binding site, and a cysteine-rich domain, a
transmembrane segment, and an intracellular catalytic
domain. It is part of a multisubunit complex that binds
glial-derived neurotropic factor (GDNF) family ligands
(GFLs) including GDNF, neurturin, artemin, and
persephin. GFLs bind RET along with four GPI-anchored
coreceptors, bringing two RET molecules together,
leading to autophosphorylation, activation, and
intracellular signaling. RET is essential for the
development of the sympathetic, parasympathetic and
enteric nervous systems, and the kidney. RET disruption
by germline mutations causes diseases in humans
including congenital aganglionosis of the
gastrointestinal tract (Hirschsprung's disease) and
three related inherited cancers: multiple endocrine
neoplasia type 2A (MEN2A), MEN2B, and familial medullary
thyroid carcinoma (FMTC).
Length = 290
Score = 31.9 bits (72), Expect = 0.11
Identities = 11/30 (36%), Positives = 17/30 (56%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKLPKKR 137
+++ CW +P RP F + K LEK+ K
Sbjct: 261 LMLTCWKQEPDKRPTFADISKELEKMMVKS 290
>gnl|CDD|173761 cd08221, STKc_Nek9, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene
A-related kinase 9. Serine/Threonine Kinases (STKs),
Never In Mitosis gene A (NIMA)-related kinase 9 (Nek9)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek9 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Nek9, also called Nercc1, is
primarily a cytoplasmic protein but can also localize
in the nucleus. It is involved in modulating chromosome
alignment and splitting during mitosis. It interacts
with the gamma-tubulin ring complex and the Ran GTPase,
and is implicated in microtubule organization. Nek9
associates with FACT (FAcilitates Chromatin
Transcription) and modulates interphase progression. It
also interacts with Nek6, and Nek7, during mitosis,
resulting in their activation.
Length = 256
Score = 31.3 bits (71), Expect = 0.14
Identities = 23/84 (27%), Positives = 38/84 (45%), Gaps = 4/84 (4%)
Query: 5 IGKGHFG--TVYNGNWHGEVAV-KVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
+GKG FG T+Y + V K +++ L +++ +A E+ +H N++ +
Sbjct: 8 LGKGAFGEATLYRRTEDDSLVVWKEVNLTRLSEKERRDALN-EIVILSLLQHPNIIAYYN 66
Query: 62 ACMKPPHLAIVTSKCNGHTLYTNI 85
M L I NG TLY I
Sbjct: 67 HFMDDNTLLIEMEYANGGTLYDKI 90
>gnl|CDD|133181 cd05050, PTKc_Musk, Catalytic domain of the Protein Tyrosine
Kinase, Muscle-specific kinase. Protein Tyrosine Kinase
(PTK) family; Muscle-specific kinase (Musk); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
Musk is a receptor tyr kinase (RTK) containing an
extracellular region with four immunoglobulin-like
domains and a cysteine-rich cluster, a transmembrane
segment, and an intracellular catalytic domain. Musk is
expressed and concentrated in the postsynaptic membrane
in skeletal muscle. It is essential for the
establishment of the neuromuscular junction (NMJ), a
peripheral synapse that conveys signals from motor
neurons to muscle cells. Agrin, a large proteoglycan
released from motor neurons, stimulates Musk
autophosphorylation and activation, leading to the
clustering of acetylcholine receptors (AChRs). To date,
there is no evidence to suggest that agrin binds
directly to Musk. Mutations in AChR, Musk and other
partners are responsible for diseases of the NMJ, such
as the autoimmune syndrome myasthenia gravis.
Length = 288
Score = 31.3 bits (71), Expect = 0.14
Identities = 10/26 (38%), Positives = 18/26 (69%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEK 132
+++ CWS PSDRP F ++ + L++
Sbjct: 263 NLMRLCWSKLPSDRPSFASINRILQR 288
Score = 29.8 bits (67), Expect = 0.59
Identities = 20/67 (29%), Positives = 29/67 (43%), Gaps = 10/67 (14%)
Query: 5 IGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
IG+G FG V+ G VAVK+L + D + F+ E + H N+
Sbjct: 13 IGQGAFGRVFQARAPGLLPYEPFTMVAVKMLKEEASADMQA--DFQREAALMAEFDHPNI 70
Query: 57 VLFMGAC 63
V +G C
Sbjct: 71 VKLLGVC 77
>gnl|CDD|173644 cd05079, PTKc_Jak1_rpt2, Catalytic (repeat 2) domain of the Protein
Tyrosine Kinase, Janus kinase 1. Protein Tyrosine
Kinase (PTK) family; Janus kinase 1 (Jak1); catalytic
(c) domain (repeat 2). The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Jak1 is a member of the
Janus kinase (Jak) subfamily of proteins, which are
cytoplasmic (or nonreceptor) tyr kinases containing an
N-terminal FERM domain, followed by a Src homology 2
(SH2) domain, a pseudokinase domain, and a C-terminal
tyr kinase domain. Jaks are crucial for cytokine
receptor signaling. They are activated by
autophosphorylation upon cytokine-induced receptor
aggregation, and subsequently trigger downstream
signaling events such as the phosphorylation of signal
transducers and activators of transcription (STATs).
Jak1 is widely expressed in many tissues. Many cytokines
are dependent on Jak1 for signaling, including those
that use the shared receptor subunits common gamma chain
(IL-2, IL-4, IL-7, IL-9, IL-15, IL-21) and gp130 (IL-6,
IL-11, oncostatin M, G-CSF, and IFNs, among others). The
many varied interactions of Jak1 and its ubiquitous
expression suggest many biological roles. Jak1 is
important in neurological development, as well as in
lymphoid development and function. It also plays a role
in the pathophysiology of cardiac hypertrophy and heart
failure. A mutation in the ATP-binding site of Jak1 was
identified in a human uterine leiomyosarcoma cell line,
resulting in defective cytokine induction and antigen
presentation, thus allowing the tumor to evade the
immune system.
Length = 284
Score = 31.4 bits (71), Expect = 0.17
Identities = 10/32 (31%), Positives = 20/32 (62%), Gaps = 1/32 (3%)
Query: 102 QQISQDVLMKCWSYKPSDRPDFITLMKSLEKL 133
+++ Q ++ KCW ++PS R F L++ E +
Sbjct: 253 EEVYQ-LMRKCWEFQPSKRTTFQNLIEGFEAI 283
Score = 31.1 bits (70), Expect = 0.19
Identities = 24/66 (36%), Positives = 32/66 (48%), Gaps = 9/66 (13%)
Query: 5 IGKGHFGTV----YN--GNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+G+GHFG V Y+ G+ GE VAVK L + K E+ R HEN+V
Sbjct: 12 LGEGHFGKVELCRYDPEGDNTGEQVAVKSLKPE--SGGNHIADLKKEIEILRNLYHENIV 69
Query: 58 LFMGAC 63
+ G C
Sbjct: 70 KYKGIC 75
>gnl|CDD|132983 cd06652, STKc_MEKK2, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 2.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase
2 (MEKK2) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The MEKK2 subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. MEKK2 is a
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK or MKKK or MAP3K), that phosphorylates and
activates the MAPK kinase MEK5 (or MKK5), which in turn
phosphorylates and activates extracellular
signal-regulated kinase 5 (ERK5). The ERK5 cascade
plays roles in promoting cell proliferation,
differentiation, neuronal survival, and
neuroprotection. MEKK2 also activates ERK1/2, c-Jun
N-terminal kinase (JNK) and p38 through their
respective MAPKKs MEK1/2, JNK-activating kinase 2
(JNKK2), and MKK3/6. MEKK2 plays roles in T cell
receptor signaling, immune synapse formation, cytokine
gene expression, as well as in EGF and FGF receptor
signaling.
Length = 265
Score = 30.8 bits (69), Expect = 0.21
Identities = 21/72 (29%), Positives = 34/72 (47%), Gaps = 5/72 (6%)
Query: 1 MGDRIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWE--AFKLEVTTFRKTRHEN 55
+G +G+G FG VY + + E+AVK + D E + E A + E+ + HE
Sbjct: 6 LGKLLGQGAFGRVYLCYDADTGRELAVKQVQFDPESPETSKEVNALECEIQLLKNLLHER 65
Query: 56 LVLFMGACMKPP 67
+V + G P
Sbjct: 66 IVQYYGCLRDPM 77
>gnl|CDD|132965 cd06634, STKc_TAO2, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids
2. Serine/threonine kinases (STKs), thousand-and-one
amino acids 2 (TAO2) subfamily, catalytic (c) domain.
STKs catalyze the transfer of the gamma-phosphoryl
group from ATP to serine/threonine residues on protein
substrates. The TAO subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. TAO proteins
possess mitogen-activated protein kinase (MAPK) kinase
kinase (MAPKKK or MAP3K or MKKK) activity. MAPK
signaling cascades are important in mediating cellular
responses to extracellular signals. Human TAO2 is also
known as prostate-derived Ste20-like kinase (PSK) and
was identified in a screen for overexpressed RNAs in
prostate cancer. TAO2 activates both p38 and c-Jun
N-terminal kinase (JNK), by phosphorylating and
activating the respective MAP/ERK kinases (MEKs, also
known as MKKs or MAPKKs), MEK3/MEK6 and MKK4/MKK7. TAO2
contains a long C-terminal extension with
autoinhibitory segments. It is activated by the release
of this inhibition and the phosphorylation of its
activation loop serine. TAO2 functions as a regulator
of actin cytoskeletal and microtubule organization. In
addition, it regulates the transforming growth
factor-activated kinase 1 (TAK1), which is a MAPKKK
that plays an essential role in the signaling pathways
of tumor necrosis factor (TNF), interleukin 1 (IL-1),
and Toll-like receptor (TLR).
Length = 308
Score = 30.8 bits (69), Expect = 0.23
Identities = 21/77 (27%), Positives = 32/77 (41%), Gaps = 3/77 (3%)
Query: 5 IGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
IG G FG VY + VA+K + + W+ EV +K RH N + + G
Sbjct: 23 IGHGSFGAVYFARDVRNSEVVAIKKMSYSGKQSNEKWQDIIKEVRFLQKLRHPNTIQYRG 82
Query: 62 ACMKPPHLAIVTSKCNG 78
++ +V C G
Sbjct: 83 CYLREHTAWLVMEYCLG 99
>gnl|CDD|173634 cd05053, PTKc_FGFR, Catalytic domain of the Protein Tyrosine
Kinases, Fibroblast Growth Factor Receptors. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor (FGFR) subfamily; catalytic (c) domain. The
FGFR subfamily consists of FGFR1, FGFR2, FGFR3, FGFR4,
and similar proteins. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K).PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. FGFR subfamily members
are receptor tyr kinases (RTKs) containing an
extracellular ligand-binding region with three
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. The binding of
FGFRs to their ligands, the FGFs, and to heparin/heparan
sulfate (HS) results in the formation of a ternary
complex, which leads to receptor dimerization and
activation, and intracellular signaling. There are at
least 23 FGFs and four types of FGFRs. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. FGF/FGFR signaling is
important in the regulation of embryonic development,
homeostasis, and regenerative processes. Depending on
the cell type and stage, FGFR signaling produces diverse
cellular responses including proliferation, growth
arrest, differentiation, and apoptosis. Aberrant
signaling leads to many human diseases such as skeletal,
olfactory, and metabolic disorders, as well as cancer.
Length = 293
Score = 30.5 bits (69), Expect = 0.31
Identities = 11/35 (31%), Positives = 19/35 (54%), Gaps = 3/35 (8%)
Query: 102 QQISQDVLM---KCWSYKPSDRPDFITLMKSLEKL 133
Q +Q++ CW PS RP F L++ L+++
Sbjct: 257 QNCTQELYHLMRDCWHEVPSQRPTFKQLVEDLDRM 291
>gnl|CDD|173641 cd05072, PTKc_Lyn, Catalytic domain of the Protein Tyrosine
Kinase, Lyn. Protein Tyrosine Kinase (PTK) family; Lyn
kinase; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Lyn is a
member of the Src subfamily of proteins, which are
cytoplasmic (or non-receptor) tyr kinases. Src kinases
contain an N-terminal SH4 domain with a myristoylation
site, followed by SH3 and SH2 domains, a tyr kinase
domain, and a regulatory C-terminal region containing a
conserved tyr. They are activated by
autophosphorylation at the tyr kinase domain, but are
negatively regulated by phosphorylation at the
C-terminal tyr by Csk (C-terminal Src Kinase). Src
proteins are involved in signaling pathways that
regulate cytokine and growth factor responses,
cytoskeleton dynamics, cell proliferation, survival,
and differentiation. Lyn is expressed in B lymphocytes
and myeloid cells. It exhibits both positive and
negative regulatory roles in B cell receptor (BCR)
signaling. Lyn, as well as Fyn and Blk, promotes B cell
activation by phosphorylating ITAMs (immunoreceptor tyr
activation motifs) in CD19 and in Ig components of BCR.
It negatively regulates signaling by its unique ability
to phosphorylate ITIMs (immunoreceptor tyr inhibition
motifs) in cell surface receptors like CD22 and CD5.
Lyn also plays an important role in G-CSF receptor
signaling by phosphorylating a variety of adaptor
molecules.
Length = 261
Score = 30.4 bits (68), Expect = 0.32
Identities = 20/75 (26%), Positives = 35/75 (46%), Gaps = 6/75 (8%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
+ ++G G FG V+ G ++ +VAVK L + + +AF E + +H+ LV
Sbjct: 10 LVKKLGAGQFGEVWMGYYNNSTKVAVKTLKPGTM----SVQAFLEEANLMKTLQHDKLVR 65
Query: 59 FMGACMKPPHLAIVT 73
K + I+T
Sbjct: 66 LYAVVTKEEPIYIIT 80
Score = 27.7 bits (61), Expect = 3.0
Identities = 9/25 (36%), Positives = 13/25 (52%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLE 131
D++ CW K +RP F L L+
Sbjct: 235 DIMKTCWKEKAEERPTFDYLQSVLD 259
>gnl|CDD|143341 cd07836, STKc_Pho85, Catalytic domain of the Serine/Threonine
Kinase, Fungal Cyclin-Dependent protein Kinase Pho85.
Serine/Threonine Kinases (STKs), Pho85 subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Pho85 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. Pho85 is a multifunctional
Cyclin-Dependent protein Kinase (CDK) in yeast. CDKs
belong to a large family of STKs that are regulated by
their cognate cyclins. Together, they are involved in
the control of cell-cycle progression, transcription,
and neuronal function. Pho85 is regulated by 10
different cyclins (Pcls) and plays a role in G1
progression, cell polarity, phosphate and glycogen
metabolism, gene expression, and in signaling changes
in the environment. It is not essential for yeast
viability and is the functional homolog of mammalian
CDK5, which plays a role in central nervous system
development.
Length = 284
Score = 30.1 bits (68), Expect = 0.37
Identities = 20/58 (34%), Positives = 35/58 (60%), Gaps = 5/58 (8%)
Query: 3 DRIGKGHFGTVYNG-NWH-GE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLV 57
+++G+G + TVY G N GE VA+K + +D +E T E++ ++ +HEN+V
Sbjct: 6 EKLGEGTYATVYKGRNRTTGEIVALKEIHLD--AEEGTPSTAIREISLMKELKHENIV 61
>gnl|CDD|133221 cd05090, PTKc_Ror1, Catalytic domain of the Protein Tyrosine
Kinase, Receptor tyrosine kinase-like Orphan Receptor
1. Protein Tyrosine Kinase (PTK) family; Receptor
tyrosine kinase-like Orphan Receptor 1 (Ror1);
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Ror proteins are orphan
receptor tyr kinases (RTKs) containing an extracellular
region with immunoglobulin-like, cysteine-rich, and
kringle domains, a transmembrane segment, and an
intracellular catalytic domain. Ror RTKs are unrelated
to the nuclear receptor subfamily called
retinoid-related orphan receptors (RORs). RTKs are
usually activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. Ror kinases
are expressed in many tissues during development. Avian
Ror1 was found to be involved in late limb development.
Studies in mice reveal that Ror1 is important in the
regulation of neurite growth in central neurons, as
well as in respiratory development. Loss of Ror1 also
enhances the heart and skeletal abnormalities found in
Ror2-deficient mice.
Length = 283
Score = 30.0 bits (67), Expect = 0.40
Identities = 18/67 (26%), Positives = 33/67 (49%), Gaps = 9/67 (13%)
Query: 3 DRIGKGHFGTVYNGNW------HGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHEN 55
+ +G+ FG +Y G+ H + VA+K L D ++ + W F+ E + + H N
Sbjct: 11 EELGECAFGKIYKGHLYLPGMDHAQLVAIKTLK-DI-NNPQQWGEFQQEASLMAELHHPN 68
Query: 56 LVLFMGA 62
+V +G
Sbjct: 69 IVCLLGV 75
>gnl|CDD|143333 cd05118, STKc_CMGC, Catalytic domain of CMGC family
Serine/Threonine Kinases. Serine/Threonine Kinases
(STKs), CMGC family, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CMGC family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. The CMGC family consists of Cyclin-Dependent
protein Kinases (CDKs), Mitogen-activated protein
kinases (MAPKs) such as Extracellular signal-regulated
kinase (ERKs), c-Jun N-terminal kinases (JNKs), and p38,
and similar proteins. CDKs belong to a large subfamily
of STKs that are regulated by their cognate cyclins.
Together, they are involved in the control of cell-cycle
progression, transcription, and neuronal function. MAPKs
serve as important mediators of cellular responses to
extracellular signals. They control critical cellular
functions including differentiation, proliferation,
migration, and apoptosis. They are also implicated in
the pathogenesis of many diseases including multiple
types of cancer, stroke, diabetes, and chronic
inflammation.
Length = 283
Score = 30.0 bits (68), Expect = 0.45
Identities = 22/109 (20%), Positives = 45/109 (41%), Gaps = 5/109 (4%)
Query: 3 DRIGKGHFGTVYNG--NWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+IG+G +G VY GE VA+K + + + + A + E+ ++ H N++
Sbjct: 5 GKIGEGTYGVVYKARDKLTGEIVAIKKIKLRFESEGIPKTALR-EIKLLKELNHPNIIKL 63
Query: 60 MGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDV 108
+ L +V + LY I + + + + Q+ Q +
Sbjct: 64 LDVFRHKGDLYLVFEFMD-TDLYKLIKDRQRGLPESLIKSYLYQLLQGL 111
>gnl|CDD|133205 cd05074, PTKc_Tyro3, Catalytic domain of the Protein Tyrosine
Kinase, Tyro3. Protein Tyrosine Kinase (PTK) family;
Tyro3; catalytic (c) domain. The PTKc family is part of
a larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Tyro3 (or Sky) is a
member of the Axl subfamily, which is composed of
receptor tyr kinases (RTKs) containing an extracellular
ligand-binding region with two immunoglobulin-like
domains followed by two fibronectin type III repeats, a
transmembrane segment, and an intracellular catalytic
domain. Binding to their ligands, Gas6 and protein S,
leads to receptor dimerization, autophosphorylation,
activation, and intracellular signaling. Tyro3 is
predominantly expressed in the central nervous system
and the brain, and functions as a neurotrophic factor.
It is also expressed in osteoclasts and has a role in
bone resorption.
Length = 273
Score = 29.9 bits (67), Expect = 0.45
Identities = 10/27 (37%), Positives = 16/27 (59%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEKL 133
+++ +CWS +P RP F L LE +
Sbjct: 246 ELMCQCWSPEPKCRPSFQHLRDQLELI 272
Score = 26.4 bits (58), Expect = 6.1
Identities = 20/71 (28%), Positives = 31/71 (43%), Gaps = 7/71 (9%)
Query: 1 MGDRIGKGHFGTVYNGNWHGE------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHE 54
+G +GKG FG+V E VAVK+L D E F E ++ H
Sbjct: 3 LGRMLGKGEFGSVREAQLKSEDGSFQKVAVKMLKADIFSSSDI-EEFLREAACMKEFDHP 61
Query: 55 NLVLFMGACMK 65
N++ +G ++
Sbjct: 62 NVIKLIGVSLR 72
>gnl|CDD|132942 cd06611, STKc_SLK_like, Catalytic domain of Ste20-like
kinase-like Protein Serine/Threonine Kinases.
Serine/threonine kinases (STKs), Ste20-like kinase
(SLK)-like subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The SLK-like subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Members of the
subfamily include SLK, STK10 (also called LOK for
lymphocyte-oriented kinase), SmSLK (Schistosoma mansoni
SLK), and related proteins. SLK promotes apoptosis
through apoptosis signal-regulating kinase 1 (ASK1) and
the mitogen-activated protein kinase (MAPK) p38. It
also plays a role in mediating actin reorganization.
STK10 is responsible in regulating the CD28 responsive
element in T cells, as well as leukocyte function
associated antigen (LFA-1)-mediated lymphocyte
adhesion. SmSLK is capable of activating the MAPK Jun
N-terminal kinase (JNK) pathway in human embryonic
kidney (HEK) cells as well as in Xenopus oocytes. It
may participate in regulating MAPK cascades during
host-parasite interactions.
Length = 280
Score = 29.7 bits (67), Expect = 0.49
Identities = 21/80 (26%), Positives = 35/80 (43%), Gaps = 6/80 (7%)
Query: 5 IGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
+G G FG VY + A K++ ++ E+ E F +E+ + +H N+V
Sbjct: 13 LGDGAFGKVYKAQHKETGLFAAAKIIQIE---SEEELEDFMVEIDILSECKHPNIVGLYE 69
Query: 62 ACMKPPHLAIVTSKCNGHTL 81
A L I+ C+G L
Sbjct: 70 AYFYENKLWILIEFCDGGAL 89
>gnl|CDD|173647 cd05091, PTKc_Ror2, Catalytic domain of the Protein Tyrosine
Kinase, Receptor tyrosine kinase-like Orphan Receptor
2. Protein Tyrosine Kinase (PTK) family; Receptor
tyrosine kinase-like Orphan Receptor 2 (Ror2);
catalytic (c) domain. The PTKc family is part of a
larger superfamily that includes the catalytic domains
of other kinases such as protein serine/threonine
kinases, RIO kinases, and phosphoinositide 3-kinase
(PI3K). PTKs catalyze the transfer of the
gamma-phosphoryl group from ATP to tyrosine (tyr)
residues in protein substrates. Ror proteins are orphan
receptor tyr kinases (RTKs) containing an extracellular
region with immunoglobulin-like, cysteine-rich, and
kringle domains, a transmembrane segment, and an
intracellular catalytic domain. Ror RTKs are unrelated
to the nuclear receptor subfamily called
retinoid-related orphan receptors (RORs). RTKs are
usually activated through ligand binding, which causes
dimerization and autophosphorylation of the
intracellular tyr kinase catalytic domain. Ror2 plays
important roles in skeletal and heart formation.
Ror2-deficient mice show widespread bone abnormalities,
ventricular defects in the heart, and respiratory
dysfunction. Mutations in human Ror2 result in two
different bone development genetic disorders, recessive
Robinow syndrome and brachydactyly type B. Ror2 is also
implicated in neural development.
Length = 283
Score = 30.0 bits (67), Expect = 0.51
Identities = 22/86 (25%), Positives = 39/86 (45%), Gaps = 6/86 (6%)
Query: 3 DRIGKGHFGTVYNGNWHGEV---AVKVLDVDYLDDEKTW---EAFKLEVTTFRKTRHENL 56
+ +G+ FG VY G+ G + + + L D+ E FK E + +H N+
Sbjct: 11 EELGEDRFGKVYKGHLFGTAPGEQTQAVAIKTLKDKAEGPLREEFKHEAMMRSRLQHPNI 70
Query: 57 VLFMGACMKPPHLAIVTSKCNGHTLY 82
V +G K L+++ S C+ L+
Sbjct: 71 VCLLGVVTKEQPLSMIFSYCSHSDLH 96
>gnl|CDD|133228 cd05097, PTKc_DDR_like, Catalytic domain of Discoidin Domain
Receptor-like Protein Tyrosine Kinases. Protein
Tyrosine Kinase (PTK) family; Discoidin Domain Receptor
(DDR)-like proteins; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. DDR-like
proteins are members of the DDR subfamily, which are
receptor tyr kinases (RTKs) containing an extracellular
discoidin homology domain, a transmembrane segment, an
extended juxtamembrane region, and an intracellular
catalytic domain. The binding of the ligand, collagen,
to DDRs results in a slow but sustained receptor
activation. DDRs regulate cell adhesion, proliferation,
and extracellular matrix remodeling. They have been
linked to a variety of human cancers including breast,
colon, ovarian, brain, and lung. There is no evidence
showing that DDRs act as transforming oncogenes. They
are more likely to play a role in the regulation of
tumor growth and metastasis.
Length = 295
Score = 29.9 bits (67), Expect = 0.54
Identities = 9/24 (37%), Positives = 13/24 (54%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSL 130
++M+CWS DRP F + L
Sbjct: 270 KLMMRCWSRDIKDRPTFNKIHHFL 293
>gnl|CDD|133247 cd05116, PTKc_Syk, Catalytic domain of the Protein Tyrosine Kinase,
Spleen tyrosine kinase. Protein Tyrosine Kinase (PTK)
family; Spleen tyrosine kinase (Syk); catalytic (c)
domain. The PTKc family is part of a larger superfamily
that includes the catalytic domains of other kinases
such as protein serine/threonine kinases, RIO kinases,
and phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Syk,
together with Zap-70, form the Syk subfamily of kinases
which are cytoplasmic (or nonreceptor) tyr kinases
containing two Src homology 2 (SH2) domains N-terminal
to the catalytic tyr kinase domain. Syk was first cloned
from the spleen, and its function in hematopoietic cells
is well-established. Syk is involved in the signaling
downstream of activated receptors (including B-cell and
Fc receptors) that contain ITAMs (immunoreceptor tyr
activation motifs), leading to processes such as cell
proliferation, differentiation, survival, adhesion,
migration, and phagocytosis. More recently, Syk
expression has been detected in other cell types
(including epithelial cells, vascular endothelial cells,
neurons, hepatocytes, and melanocytes), suggesting a
variety of biological functions in non-immune cells. Syk
plays a critical role in maintaining vascular integrity
and in wound healing during embryogenesis. It also
regulates Vav3, which is important in osteoclast
function including bone development. In breast
epithelial cells, where Syk acts as a negative regulator
for epidermal growth factor receptor (EGFR) signaling,
loss of Syk expression is associated with abnormal
proliferation during cancer development suggesting a
potential role as a tumor suppressor. In mice, Syk has
been shown to inhibit malignant transformation of
mammary epithelial cells induced with murine mammary
tumor virus (MMTV).
Length = 257
Score = 29.5 bits (66), Expect = 0.58
Identities = 7/17 (41%), Positives = 11/17 (64%)
Query: 107 DVLMKCWSYKPSDRPDF 123
D++ CW+Y +RP F
Sbjct: 229 DLMKLCWTYGVDERPGF 245
Score = 26.1 bits (57), Expect = 8.5
Identities = 13/41 (31%), Positives = 22/41 (53%)
Query: 5 IGKGHFGTVYNGNWHGEVAVKVLDVDYLDDEKTWEAFKLEV 45
+G G+FGTV G + + + K + V L ++ A K E+
Sbjct: 3 LGSGNFGTVKKGMYKMKKSEKTVAVKILKNDNNDPALKDEL 43
>gnl|CDD|133246 cd05115, PTKc_Zap-70, Catalytic domain of the Protein Tyrosine
Kinase, Zeta-chain-associated protein of 70kDa. Protein
Tyrosine Kinase (PTK) family; Zeta-chain-associated
protein of 70kDa (Zap-70); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Zap-70 is
a member of the Syk subfamily of kinases, which are
cytoplasmic (or nonreceptor) tyr kinases containing two
Src homology 2 (SH2) domains N-terminal to the catalytic
tyr kinase domain. Zap-70 is primarily expressed in
T-cells and NK cells, and is a crucial component in
T-cell receptor (TCR) signaling. Zap-70 binds the
phosphorylated ITAM (immunoreceptor tyr activation
motif) sequences of the activated TCR zeta-chain through
its SH2 domains, leading to its phosphorylation and
activation. It then phosphorylates target proteins,
which propagate the signals to downstream pathways.
Zap-70 is hardly detected in normal peripheral B-cells,
but is present in some B-cell malignancies. It is used
as a diagnostic marker for chronic lymphocytic leukemia
(CLL) as it is associated with the more aggressive
subtype of the disease.
Length = 257
Score = 29.5 bits (66), Expect = 0.71
Identities = 8/19 (42%), Positives = 12/19 (63%)
Query: 108 VLMKCWSYKPSDRPDFITL 126
++ CW YK DRP+F +
Sbjct: 230 LMKDCWIYKWEDRPNFAKV 248
>gnl|CDD|143344 cd07839, STKc_CDK5, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 5.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 5 (CDK5) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK5 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDK5 is unusual in that it is regulated by
non-cyclin proteins, p35 and p39. It is highly
expressed in the nervous system and is critical in
normal neural development and function. It plays a role
in neuronal migration and differentiation, and is also
important in synaptic plasticity and learning. CDK5
also participates in protecting against cell death and
promoting angiogenesis. Impaired CDK5 activity is
implicated in Alzheimer's disease, amyotrophic lateral
sclerosis, Parkinson's disease, Huntington's disease
and acute neuronal injury.
Length = 284
Score = 29.3 bits (66), Expect = 0.83
Identities = 19/59 (32%), Positives = 36/59 (61%), Gaps = 6/59 (10%)
Query: 3 DRIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKL-EVTTFRKTRHENLV 57
++IG+G +GTV+ N H VA+K + +D DD++ + L E+ ++ +H+N+V
Sbjct: 6 EKIGEGTYGTVFKAKNRETHEIVALKRVRLD--DDDEGVPSSALREICLLKELKHKNIV 62
>gnl|CDD|173752 cd07861, STKc_CDK1_euk, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 1 from higher
eukaryotes-like. Serine/Threonine Kinases (STKs),
Cyclin-Dependent protein Kinase 1 (CDK1) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK1 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. This subfamily is composed of CDK1 from
higher eukaryotes. CDK1 is also called Cell division
control protein 2 (Cdc2) or p34 protein kinase, and is
regulated by cyclins A, B, and E. The CDK1/cyclin A
complex controls G2 phase entry and progression.
CDK1/cyclin A2 has also been implicated as an important
regulator of S phase events. The CDK1/cyclin B complex
is critical for G2 to M phase transition. It induces
mitosis by activating nuclear enzymes that regulate
chromatin condensation, nuclear membrane degradation,
mitosis-specific microtubule and cytoskeletal
reorganization. CDK1 also associates with cyclin E and
plays a role in the entry into S phase. CDK1
transcription is stable throughout the cell cycle but
is modulated in some pathological conditions. It may
play a role in regulating apoptosis under these
conditions. In breast cancer cells, HER2 can mediate
apoptosis by inactivating CDK1. Activation of CDK1 may
contribute to HIV-1 induced apoptosis and neuronal
apoptosis in neurodegenerative diseases.
Length = 285
Score = 28.9 bits (65), Expect = 0.90
Identities = 17/73 (23%), Positives = 37/73 (50%), Gaps = 4/73 (5%)
Query: 3 DRIGKGHFGTVYNG---NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
++IG+G +G VY G VA+K + ++ ++ A + E++ ++ +H N+V
Sbjct: 6 EKIGEGTYGVVYKGRNKKTGQIVAMKKIRLESEEEGVPSTAIR-EISLLKELQHPNIVCL 64
Query: 60 MGACMKPPHLAIV 72
M+ L ++
Sbjct: 65 QDVLMQESRLYLI 77
>gnl|CDD|173635 cd05054, PTKc_VEGFR, Catalytic domain of the Protein Tyrosine
Kinases, Vascular Endothelial Growth Factor Receptors.
Protein Tyrosine Kinase (PTK) family; Vascular
Endothelial Growth Factor Receptor (VEGFR) subfamily;
catalytic (c) domain. The VEGFR subfamily consists of
VEGFR1 (Flt1), VEGFR2 (Flk1), VEGFR3 (Flt4), and similar
proteins. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
VEGFR subfamily members are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
seven immunoglobulin (Ig)-like domains, a transmembrane
segment, and an intracellular catalytic domain. In
VEGFR3, the fifth Ig-like domain is replaced by a
disulfide bridge. The binding of VEGFRs to their
ligands, the VEGFs, leads to receptor dimerization,
activation, and intracellular signaling. There are five
VEGF ligands in mammals, which bind, in an overlapping
pattern to the three VEGFRs, which can form homo or
heterodimers. VEGFRs regulate the cardiovascular system.
They are critical for vascular development during
embryogenesis and blood vessel formation in adults. They
induce cellular functions common to other growth factor
receptors such as cell migration, survival, and
proliferation. VEGFR1 binds VEGFA, VEGFB, and placenta
growth factor (PLGF). It regulates monocyte and
macrophage migration, vascular permeability,
haematopoiesis, and the recruitment of haematopietic
progenitor cells from the bone marrow.
Length = 337
Score = 29.0 bits (65), Expect = 0.95
Identities = 10/26 (38%), Positives = 15/26 (57%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKL 133
+++ CW P DRP F L++ L L
Sbjct: 308 IMLDCWHNNPEDRPTFSELVEILGDL 333
Score = 26.4 bits (58), Expect = 7.4
Identities = 34/123 (27%), Positives = 52/123 (42%), Gaps = 15/123 (12%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKT- 51
+G +G+G FG V + G VAVK+L E ++A E+
Sbjct: 11 LGKPLGRGAFGKVIQASAFGIEKSASCRTVAVKMLKEGATASE--YKALMTELKILIHIG 68
Query: 52 RHENLVLFMGACMKP--PHLAIVTSKCNGHTLYTNIHIYKEKFALNKM-STVGQQISQDV 108
H N+V +GAC KP P + IV C L + +E F+ + ST +++ Q
Sbjct: 69 HHLNVVNLLGACTKPGGPLMVIV-EYCKFGNLSNYLRSKRECFSPYRNKSTRKREMKQKE 127
Query: 109 LMK 111
K
Sbjct: 128 GKK 130
>gnl|CDD|143338 cd07833, STKc_CDKL, Catalytic domain of Cyclin-Dependent protein
Kinase Like Serine/Threonine Kinases. Serine/Threonine
Kinases (STKs), Cyclin-dependent protein kinase like
(CDKL) subfamily, catalytic (c) domain. STKs catalyze
the transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
CDKL subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. This subfamily is composed of CDKL1-5 and
similar proteins. Some CDKLs, like CDKL1 and CDKL3, may
be implicated in transformation and others, like CDKL3
and CDKL5, are associated with mental retardation when
impaired. CDKL2 plays a role in learning and memory.
Length = 288
Score = 28.8 bits (65), Expect = 0.96
Identities = 21/75 (28%), Positives = 32/75 (42%), Gaps = 10/75 (13%)
Query: 4 RIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKL---EVTTFRKTRHENLV 57
+G+G +G V N VA+K + + E + K EV R+ RHEN+V
Sbjct: 8 VVGEGAYGVVLKCRNKATGEIVAIK----KFKESEDDEDVKKTALREVKVLRQLRHENIV 63
Query: 58 LFMGACMKPPHLAIV 72
A + L +V
Sbjct: 64 NLKEAFRRKGRLYLV 78
>gnl|CDD|132978 cd06647, STKc_PAK_I, Catalytic domain of the Protein
Serine/Threonine Kinase, Group I p21-activated kinase.
Serine/threonine kinases (STKs), p21-activated kinase
(PAK) subfamily, Group I, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The PAK subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. PAKs are Rho family GTPase-regulated kinases
that serve as important mediators in the function of
Cdc42 (cell division cycle 42) and Rac. PAKs are
implicated in the regulation of many cellular processes
including growth factor receptor-mediated proliferation,
cell polarity, cell motility, cell death and survival,
and actin cytoskeleton organization. PAKs from higher
eukaryotes are classified into two groups (I and II),
according to their biochemical and structural features.
Group I PAKs, also called conventional PAKs, include
PAK1, PAK2, and PAK3. Group I PAKs contain a PBD
(p21-binding domain) overlapping with an AID
(autoinhibitory domain), a C-terminal catalytic domain,
SH3 binding sites and a non-classical SH3 binding site
for PIX (PAK-interacting exchange factor). They interact
with the SH3 domain containing proteins Nck, Grb2 and
PIX. Binding of group I PAKs to activated GTPases leads
to conformational changes that destabilize the AID,
allowing autophosphorylation and full activation of the
kinase domain. Known group I PAK substrates include
MLCK, Bad, Raf, MEK1, LIMK, Merlin, Vimentin, Myc,
Stat5a, and Aurora A, among others.
Length = 293
Score = 29.1 bits (65), Expect = 0.99
Identities = 22/82 (26%), Positives = 39/82 (47%), Gaps = 6/82 (7%)
Query: 3 DRIGKGHFGTVYNG---NWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
++IG+G GTVY EVA+K ++ L + E E+ R+ +H N+V +
Sbjct: 25 EKIGQGASGTVYTAIDVATGQEVAIKQMN---LQQQPKKELIINEILVMRENKHPNIVNY 81
Query: 60 MGACMKPPHLAIVTSKCNGHTL 81
+ + + L +V G +L
Sbjct: 82 LDSYLVGDELWVVMEYLAGGSL 103
>gnl|CDD|133193 cd05062, PTKc_IGF-1R, Catalytic domain of the Protein Tyrosine
Kinase, Insulin-like Growth Factor-1 Receptor. Protein
Tyrosine Kinase (PTK) family; Insulin-like Growth
Factor-1 Receptor (IGF-1R); catalytic (c) domain. The
PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. IGF-1R is
a receptor tyr kinases (RTK) that is composed of two
alphabeta heterodimers. Binding of the ligand (IGF-1 or
IGF-2) to the extracellular alpha subunit activates the
intracellular tyr kinase domain of the transmembrane
beta subunit. Receptor activation leads to
autophosphorylation, which stimulates downstream kinase
activities and biological function. IGF-1R signaling is
important in the differentiation, growth, and survival
of normal cells. In cancer cells, where it is frequently
overexpressed, IGF-1R is implicated in proliferation,
the suppression of apoptosis, invasion, and metastasis.
IGF-1R is being developed as a therapeutic target in
cancer treatment.
Length = 277
Score = 28.8 bits (64), Expect = 1.2
Identities = 8/26 (30%), Positives = 17/26 (65%)
Query: 107 DVLMKCWSYKPSDRPDFITLMKSLEK 132
+++ CW Y P RP F+ ++ S+++
Sbjct: 252 ELMRMCWQYNPKMRPSFLEIISSIKE 277
>gnl|CDD|173627 cd05037, PTK_Jak_rpt1, Pseudokinase (repeat 1) domain of the
Protein Tyrosine Kinases, Janus kinases. Protein
Tyrosine Kinase (PTK) family; Janus kinase (Jak)
subfamily; pseudokinase domain (repeat1). The Jak
subfamily is composed of Jak1, Jak2, Jak3, TYK2, and
similar proteins. The PTKc (catalytic domain) family to
which this subfamily belongs, is part of a larger
superfamily that includes the catalytic domains of
other kinases such as protein serine/threonine kinases,
RIO kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to tyrosine (tyr) residues in protein
substrates. Jak subfamily proteins are cytoplasmic (or
nonreceptor) tyr kinases containing an N-terminal FERM
domain, followed by a Src homology 2 (SH2) domain, a
pseudokinase domain, and a C-terminal catalytic tyr
kinase domain. The pseudokinase domain shows similarity
to tyr kinases but lacks crucial residues for catalytic
activity and ATP binding. It modulates the kinase
activity of the C-terminal catalytic domain. Most Jaks
are expressed in a wide variety of tissues, except for
Jak3, which is expressed only in hematopoietic cells.
Jaks are crucial for cytokine receptor signaling. They
are activated by autophosphorylation upon
cytokine-induced receptor aggregation, and subsequently
trigger downstream signaling events such as the
phosphorylation of signal transducers and activators of
transcription (STATs). Jaks are also involved in
regulating the surface expression of some cytokine
receptors. The Jak-STAT pathway is involved in many
biological processes including hematopoiesis,
immunoregulation, host defense, fertility, lactation,
growth, and embryogenesis.
Length = 259
Score = 28.6 bits (64), Expect = 1.2
Identities = 13/48 (27%), Positives = 22/48 (45%), Gaps = 4/48 (8%)
Query: 21 EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGACMKPPH 68
V +KVL D+ D AF + + H++LV G C++ +
Sbjct: 32 SVVLKVLGSDHRDSL----AFFETASLMSQLSHKHLVKLYGVCVRDEN 75
Score = 27.0 bits (60), Expect = 3.8
Identities = 8/22 (36%), Positives = 15/22 (68%)
Query: 109 LMKCWSYKPSDRPDFITLMKSL 130
+ +CW+Y P+ RP F +++ L
Sbjct: 237 INQCWTYDPTKRPSFRAILRDL 258
>gnl|CDD|173733 cd07829, STKc_CDK_like, Catalytic domain of Cyclin-Dependent
protein Kinase-like Serine/Threonine Kinases.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase (CDK)-like subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK-like subfamily
is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDKs are partly regulated by their
subcellular localization, which defines substrate
phosphorylation and the resulting specific function.
CDK1, CDK2, CDK4, and CDK6 have well-defined functions
in the cell cycle, such as the regulation of the early
G1 phase by CDK4 or CDK6, the G1/S phase transition by
CDK2, or the entry of mitosis by CDK1. They also
exhibit overlapping cyclin specificity and functions in
certain conditions. Knockout mice with a single CDK
deleted remain viable with specific phenotypes, showing
that some CDKs can compensate for each other. For
example, CDK4 can compensate for the loss of CDK6,
however, double knockout mice with both CDK4 and CDK6
deleted die in utero. CDK8 and CDK9 are mainly involved
in transcription while CDK5 is implicated in neuronal
function. CDK7 plays essential roles in both the cell
cycle as a CDK-Activating Kinase (CAK) and in
transcription as a component of the general
transcription factor TFIIH.
Length = 282
Score = 28.2 bits (64), Expect = 1.6
Identities = 16/73 (21%), Positives = 36/73 (49%), Gaps = 4/73 (5%)
Query: 3 DRIGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
+++G+G +G VY + VA+K + +D ++ A + E++ ++ +H N+V
Sbjct: 5 EKLGEGTYGVVYKARDKKTGEIVALKKIRLDNEEEGIPSTALR-EISLLKELKHPNIVKL 63
Query: 60 MGACMKPPHLAIV 72
+ L +V
Sbjct: 64 LDVIHTERKLYLV 76
>gnl|CDD|132966 cd06635, STKc_TAO1, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids 1.
Serine/threonine kinases (STKs), thousand-and-one amino
acids 1 (TAO1) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to serine/threonine residues on protein substrates.
The TAO subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. TAO proteins possess mitogen-activated protein
kinase (MAPK) kinase kinase (MAPKKK or MAP3K or MKKK)
activity. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
TAO1 is sometimes referred to as prostate-derived
sterile 20-like kinase 2 (PSK2). TAO1 activates the p38
MAPK through direct interaction with and activation of
MEK3. TAO1 is highly expressed in the brain and may play
a role in neuronal apoptosis. TAO1 interacts with the
checkpoint proteins BubR1 and Mad2, and plays an
important role in regulating mitotic progression, which
is required for both chromosome congression and
checkpoint-induced anaphase delay. TAO1 may play a role
in protecting genomic stability.
Length = 317
Score = 28.1 bits (62), Expect = 1.7
Identities = 19/77 (24%), Positives = 33/77 (42%), Gaps = 3/77 (3%)
Query: 5 IGKGHFGTVY---NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
IG G FG VY + + VA+K + + W+ EV ++ +H N + + G
Sbjct: 33 IGHGSFGAVYFARDVRTNEVVAIKKMSYSGKQSNEKWQDIIKEVKFLQRIKHPNSIEYKG 92
Query: 62 ACMKPPHLAIVTSKCNG 78
++ +V C G
Sbjct: 93 CYLREHTAWLVMEYCLG 109
>gnl|CDD|173672 cd05581, STKc_PDK1, Catalytic domain of the Protein
Serine/Threonine Kinase, Phosphoinositide-dependent
kinase 1. Serine/Threonine Kinases (STKs),
Phosphoinositide-dependent kinase 1 (PDK1) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The PDK1 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase (PI3K). PDK1 carries an
N-terminal catalytic domain and a C-terminal pleckstrin
homology (PH) domain that binds phosphoinositides. It
phosphorylates the activation loop of AGC kinases that
are regulated by PI3K such as PKB, SGK, and PKC, among
others, and is crucial for their activation. Thus, it
contributes in regulating many processes including
metabolism, growth, proliferation, and survival. PDK1
also has the ability to autophosphorylate and is
constitutively active in mammalian cells. PDK1 is
essential for normal embryo development and is
important in regulating cell volume.
Length = 280
Score = 28.3 bits (64), Expect = 1.7
Identities = 15/39 (38%), Positives = 18/39 (46%), Gaps = 5/39 (12%)
Query: 2 GDRIGKGHFGTVY----NGNWHGEVAVKVLDVDYLDDEK 36
G IG+G F TV E A+K+LD L EK
Sbjct: 6 GKIIGEGSFSTVVLAKEKETNK-EYAIKILDKRQLIKEK 43
>gnl|CDD|173654 cd05108, PTKc_EGFR, Catalytic domain of the Protein Tyrosine
Kinase, Epidermal Growth Factor Receptor. Protein
Tyrosine Kinase (PTK) family; Epidermal Growth Factor
Receptor (EGFR); catalytic (c) domain. The PTKc family
is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EGFR
(HER1, ErbB1) is a member of the EGFR (HER, ErbB)
subfamily of proteins, which are receptor tyr kinases
(RTKs) containing an extracellular EGF-related
ligand-binding region, a transmembrane helix, and a
cytoplasmic region with a tyr kinase domain and a
regulatory C-terminal tail. Unlike other tyr kinases,
phosphorylation of the activation loop of EGFR proteins
is not critical to their activation. Instead, they are
activated by ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. Ligands for EGFR include EGF, heparin binding
EGF-like growth factor (HBEGF), epiregulin,
amphiregulin, TGFalpha, and betacellulin. Upon ligand
binding, EGFR can form homo- or heterodimers with other
EGFR subfamily members. The EGFR signaling pathway is
one of the most important pathways regulating cell
proliferation, differentiation, survival, and growth.
Overexpression and mutation in the kinase domain of EGFR
have been implicated in the development and progression
of a variety of cancers. A number of monoclonal
antibodies and small molecule inhibitors have been
developed that target EGFR, including the antibodies
Cetuximab and Panitumumab, which are used in combination
with other therapies for the treatment of colorectal
cancer and non-small cell lung carcinoma (NSCLC). The
small molecule inhibitors Gefitinib (Iressa) and
Erlotinib (Tarceva), already used for NSCLC, are
undergoing clinical trials for other types of cancer
including gastrointestinal, breast, head and neck, and
bladder.
Length = 316
Score = 28.4 bits (63), Expect = 1.7
Identities = 12/40 (30%), Positives = 17/40 (42%), Gaps = 6/40 (15%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKLPKKRILARSPSHPL 147
+++KCW RP F L+ K +AR P L
Sbjct: 243 IMVKCWMIDADSRPKFRELIIEFSK------MARDPQRYL 276
Score = 28.0 bits (62), Expect = 2.1
Identities = 14/30 (46%), Positives = 16/30 (53%), Gaps = 7/30 (23%)
Query: 5 IGKGHFGTVYNGNWHGE-------VAVKVL 27
+G G FGTVY G W E VA+K L
Sbjct: 15 LGSGAFGTVYKGLWIPEGEKVKIPVAIKEL 44
>gnl|CDD|133207 cd05076, PTK_Tyk2_rpt1, Pseudokinase (repeat 1) domain of the
Protein Tyrosine Kinase, Tyrosine kinase 2. Protein
Tyrosine Kinase (PTK) family; Tyrosine kinase 2 (Tyk2);
pseudokinase domain (repeat 1). The PTKc (catalytic
domain) family to which this subfamily belongs, is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Tyk2 is a
member of the Janus kinase (Jak) subfamily of proteins,
which are cytoplasmic (or nonreceptor) tyr kinases
containing an N-terminal FERM domain, followed by a Src
homology 2 (SH2) domain, a pseudokinase domain, and a
C-terminal tyr kinase domain. The pseudokinase domain
shows similarity to tyr kinases but lacks crucial
residues for catalytic activity and ATP binding. It
modulates the kinase activity of the C-terminal
catalytic domain. Jaks are crucial for cytokine receptor
signaling. They are activated by autophosphorylation
upon cytokine-induced receptor aggregation, and
subsequently trigger downstream signaling events such as
the phosphorylation of signal transducers and activators
of transcription (STATs). Tyk2 is widely expressed in
many tissues. It is involved in signaling via the
cytokine receptors IFN-alphabeta, IL-6, IL-10, IL-12,
IL-13, and IL-23. It mediates cell surface urokinase
receptor (uPAR) signaling and plays a role in modulating
vascular smooth muscle cell (VSMC) functional behavior
in response to injury. Tyk2 is also important in
dendritic cell function and T helper (Th)1 cell
differentiation. A homozygous mutation of Tyk2 was found
in a patient with hyper-IgE syndrome (HIES), a primary
immunodeficiency characterized by recurrent skin
abscesses, pneumonia, and elevated serum IgE. This
suggests that Tyk2 may play important roles in multiple
cytokine signaling involved in innate and adaptive
immunity.
Length = 274
Score = 28.3 bits (63), Expect = 1.8
Identities = 12/45 (26%), Positives = 28/45 (62%), Gaps = 3/45 (6%)
Query: 86 HIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDRPDFITLMKSL 130
Y++K L + S ++++ ++ +C +Y+P+ RP F T+++ L
Sbjct: 232 RFYEKKHRLPEPSC--KELA-TLISQCLTYEPTQRPSFRTILRDL 273
>gnl|CDD|173648 cd05092, PTKc_TrkA, Catalytic domain of the Protein Tyrosine
Kinase, Tropomyosin Related Kinase A. Protein Tyrosine
Kinase (PTK) family; Tropomyosin Related Kinase A
(TrkA); catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. TrkA is
a member of the Trk subfamily of proteins, which are
receptor tyr kinases (RTKs) containing an extracellular
region with arrays of leucine-rich motifs flanked by
two cysteine-rich clusters followed by two
immunoglobulin-like domains, a transmembrane segment,
and an intracellular catalytic domain. Binding of TrkA
to its ligand, nerve growth factor (NGF), results in
receptor oligomerization and activation of the
catalytic domain. TrkA is expressed mainly in
neural-crest-derived sensory and sympathetic neurons of
the peripheral nervous system, and in basal forebrain
cholinergic neurons of the central nervous system. It
is critical for neuronal growth, differentiation and
survival. Alternative TrkA splicing has been implicated
as a pivotal regulator of neuroblastoma (NB) behavior.
Normal TrkA expression is associated with better NB
prognosis, while the hypoxia-regulated TrkAIII splice
variant promotes NB pathogenesis and progression.
Aberrant TrkA expression has also been demonstrated in
non-neural tumors including prostate, breast, lung, and
pancreatic cancers.
Length = 280
Score = 28.0 bits (62), Expect = 2.2
Identities = 21/76 (27%), Positives = 32/76 (42%), Gaps = 11/76 (14%)
Query: 5 IGKGHFGTVYNGNWHGE--------VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
+G+G FG V+ H VAVK L E + F+ E +H+++
Sbjct: 13 LGEGAFGKVFLAECHNLLPEQDKMLVAVKALKEA---SESARQDFQREAELLTVLQHQHI 69
Query: 57 VLFMGACMKPPHLAIV 72
V F G C + L +V
Sbjct: 70 VRFYGVCTEGRPLLMV 85
>gnl|CDD|132938 cd06607, STKc_TAO, Catalytic domain of the Protein
Serine/Threonine Kinase, Thousand-and-one amino acids
proteins. Serine/threonine kinases (STKs),
thousand-and-one amino acids (TAO) subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The TAO subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. TAO proteins possess
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK or MAP3K or MKKK) activity. They activate the
MAPKs, p38 and c-Jun N-terminal kinase (JNK), by
phosphorylating and activating the respective MAP/ERK
kinases (MEKs, also known as MKKs or MAPKKs), MEK3/MEK6
and MKK4/MKK7. MAPK signaling cascades are important in
mediating cellular responses to extracellular signals.
Vertebrates contain three TAO subfamily members, named
TAO1, TAO2, and TAO3.
Length = 307
Score = 27.8 bits (62), Expect = 2.6
Identities = 21/77 (27%), Positives = 32/77 (41%), Gaps = 3/77 (3%)
Query: 5 IGKGHFGTVY--NGNWHGE-VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMG 61
IG G FG VY E VA+K + + W+ EV ++ RH N + + G
Sbjct: 23 IGHGSFGAVYFARDVRTNEVVAIKKMSYSGKQSNEKWQDIIKEVRFLQQLRHPNTIEYKG 82
Query: 62 ACMKPPHLAIVTSKCNG 78
++ +V C G
Sbjct: 83 CYLREHTAWLVMEYCLG 99
>gnl|CDD|225023 COG2112, COG2112, Predicted Ser/Thr protein kinase [Signal
transduction mechanisms].
Length = 201
Score = 27.4 bits (61), Expect = 2.6
Identities = 12/23 (52%), Positives = 14/23 (60%), Gaps = 1/23 (4%)
Query: 5 IGKGHFGTVYNGNWHG-EVAVKV 26
+ KG VY G W G EVA+KV
Sbjct: 30 LAKGTTSVVYLGEWRGGEVALKV 52
>gnl|CDD|133240 cd05109, PTKc_HER2, Catalytic domain of the Protein Tyrosine
Kinase, HER2. Protein Tyrosine Kinase (PTK) family;
HER2 (ErbB2, HER2/neu); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. HER2 is
a member of the EGFR (HER, ErbB) subfamily of proteins,
which are receptor tyr kinases (RTKs) containing an
extracellular EGF-related ligand-binding region, a
transmembrane helix, and a cytoplasmic region with a
tyr kinase domain and a regulatory C-terminal tail.
Unlike other tyr kinases, phosphorylation of the
activation loop of EGFR proteins is not critical to
their activation. Instead, they are activated by
ligand-induced dimerization, leading to the
phosphorylation of tyr residues in the C-terminal tail,
which serve as binding sites for downstream signaling
molecules. HER2 does not bind to any known EGFR
subfamily ligands, but contributes to the kinase
activity of all possible heterodimers. It acts as the
preferred partner with other ligand-bound EGFR proteins
and functions as a signal amplifier, with the HER2-HER3
heterodimer being the most potent pair in mitogenic
signaling. HER2 plays an important role in cell
development, proliferation, survival and motility.
Overexpression of HER2 results in its activation and
downstream signaling, even in the absence of ligand.
HER2 overexpression, mainly due to gene amplification,
has been shown in a variety of human cancers. Its role
in breast cancer is especially well-documented. HER2 is
up-regulated in about 25% of breast tumors and is
associated with increases in tumor aggressiveness,
recurrence and mortality. HER2 is a target for
monoclonal antibodies and small molecule inhibitors,
which are being developed as treatments for cancer. The
first humanized antibody approved for clinical use is
Trastuzumab (Herceptin), which is being used in
combination with other therapies to improve the
survival rates of patients with HER2-overexpressing
breast cancer.
Length = 279
Score = 27.7 bits (61), Expect = 2.6
Identities = 16/30 (53%), Positives = 18/30 (60%), Gaps = 7/30 (23%)
Query: 5 IGKGHFGTVYNGNW--HGE-----VAVKVL 27
+G G FGTVY G W GE VA+KVL
Sbjct: 15 LGSGAFGTVYKGIWIPDGENVKIPVAIKVL 44
Score = 27.3 bits (60), Expect = 3.2
Identities = 11/37 (29%), Positives = 17/37 (45%), Gaps = 6/37 (16%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKLPKKRILARSPS 144
+++KCW RP F L+ + +AR PS
Sbjct: 243 IMVKCWMIDSECRPRFRELVDEFSR------MARDPS 273
>gnl|CDD|234389 TIGR03903, TOMM_kin_cyc, TOMM system kinase/cyclase fusion
protein. This model represents proteins of 1350 in
length, in multiple species of Burkholderia, in
Acidovorax avenae subsp. citrulli AAC00-1 and Delftia
acidovorans SPH-1, and in multiple copies in Sorangium
cellulosum, in genomic neighborhoods that include a
cyclodehydratase/docking scaffold fusion protein
(TIGR03882) and a member of the thiazole/oxazole
modified metabolite (TOMM) precursor family TIGR03795.
It has a kinase domain in the N-terminal 300 amino
acids, followed by a cyclase homology domain, followed
by regions without named domain definitions. It is a
probable bacteriocin-like metabolite biosynthesis
protein [Cellular processes, Toxin production and
resistance].
Length = 1266
Score = 27.9 bits (62), Expect = 2.7
Identities = 15/49 (30%), Positives = 24/49 (48%)
Query: 21 EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFMGACMKPPHL 69
EVA+K+L D ++E F+ E + H N+V + + PP L
Sbjct: 5 EVAIKLLRTDAPEEEHQRARFRRETALCARLYHPNIVALLDSGEAPPGL 53
>gnl|CDD|173759 cd08219, STKc_Nek3, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 3. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 3 (Nek3) subfamily,
catalytic (c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Nek3 subfamily is
one of a family of 11 different Neks (Nek1-11) that are
involved in cell cycle control. The Nek family is part
of a larger superfamily that includes the catalytic
domains of other protein STKs, protein tyrosine kinases,
RIO kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. Nek3 is primarily
localized in the cytoplasm and shows no cell
cycle-dependent changes in its activity. It is present
in the axons of neurons and affects morphogenesis and
polarity through its regulation of microtubule
acetylation. Nek3 modulates the signaling of the
prolactin receptor through its activation of Vav2 and
contributes to prolactin-mediated motility of breast
cancer cells.
Length = 255
Score = 27.2 bits (60), Expect = 3.2
Identities = 22/98 (22%), Positives = 39/98 (39%), Gaps = 21/98 (21%)
Query: 44 EVTTFRKTRHENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQ 103
E K +H N+V F + HL IV C+G L I + + G+
Sbjct: 48 EAVLLAKMKHPNIVAFKESFEADGHLYIVMEYCDGGDLMQKIKLQR-----------GKL 96
Query: 104 ISQDVLMKCWSYKPSDRPDFITLMKSLEKLPKKRILAR 141
+D ++ W F+ + ++ + +KR+L R
Sbjct: 97 FPEDTIL-QW---------FVQMCLGVQHIHEKRVLHR 124
>gnl|CDD|133229 cd05098, PTKc_FGFR1, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 1. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 1 (FGFR1); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR1 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. Alternative splicing of
FGFR1 transcripts produces a variety of isoforms, which
are differentially expressed in cells. FGFR1 binds the
ligands, FGF1 and FGF2, with high affinity and has also
been reported to bind FGF4, FGF6, and FGF9. FGFR1
signaling is critical in the control of cell migration
during embryo development. It promotes cell
proliferation in fibroblasts. Nuclear FGFR1 plays a role
in the regulation of transcription. Mutations,
insertions or deletions of FGFR1 have been identified in
patients with Kallman's syndrome (KS), an inherited
disorder characterized by hypogonadotropic hypogonadism
and loss of olfaction. Aberrant FGFR1 expression has
been found in some human cancers including 8P11
myeloproliferative syndrome (EMS), breast cancer, and
pancreatic adenocarcinoma.
Length = 307
Score = 27.3 bits (60), Expect = 3.2
Identities = 13/47 (27%), Positives = 25/47 (53%), Gaps = 1/47 (2%)
Query: 87 IYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDRPDFITLMKSLEKL 133
+ KE ++K S ++ ++ CW PS RP F L++ L+++
Sbjct: 254 LLKEGHRMDKPSNCTNELYM-MMRDCWHAVPSQRPTFKQLVEDLDRI 299
>gnl|CDD|132961 cd06630, STKc_MEKK1, Catalytic domain of the Protein
Serine/Threonine Kinase, MAP/ERK kinase kinase 1.
Serine/threonine kinases (STKs), MAP/ERK kinase kinase
1 (MEKK1) subfamily, catalytic (c) domain. STKs
catalyze the transfer of the gamma-phosphoryl group
from ATP to serine/threonine residues on protein
substrates. The MEKK1 subfamily is part of a larger
superfamily that includes the catalytic domains of
other protein STKs, protein tyrosine kinases, RIO
kinases, aminoglycoside phosphotransferase, choline
kinase, and phosphoinositide 3-kinase. MEKK1 is a
mitogen-activated protein kinase (MAPK) kinase kinase
(MAPKKK or MKKK or MAP3K), that phosphorylates and
activates MAPK kinases (MAPKKs or MKKs or MAP2Ks),
which in turn phosphorylate and activate MAPKs during
signaling cascades that are important in mediating
cellular responses to extracellular signals. MEKK1
activates the extracellular signal-regulated kinase 1/2
(ERK1/2) and c-Jun N-terminal kinase (JNK) pathways by
activating their respective MAPKKs, MEK1/2 and
MKK4/MKK7, respectively. MEKK1 is important in
regulating cell survival and apoptosis. MEKK1 also
plays a role in cell migration, tissue maintenance and
homeostasis, and wound healing.
Length = 268
Score = 27.5 bits (61), Expect = 3.4
Identities = 17/93 (18%), Positives = 35/93 (37%), Gaps = 6/93 (6%)
Query: 2 GDRIGKGHFGTVY------NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHEN 55
G ++G G F + Y G V + + E+ EA + E+ + H +
Sbjct: 5 GQQLGTGAFSSCYQARDVKTGTLMAVKQVTYVRNTSSEQEEVVEALRKEIRLMARLNHPH 64
Query: 56 LVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIY 88
++ +GA + H + G ++ + Y
Sbjct: 65 IIRMLGATCEDSHFNLFVEWMAGGSVSHLLSKY 97
Score = 26.4 bits (58), Expect = 6.9
Identities = 9/23 (39%), Positives = 14/23 (60%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMK 128
+DV ++C +P DRP L+K
Sbjct: 241 RDVTLRCLELQPEDRPPSRELLK 263
>gnl|CDD|173753 cd07864, STKc_CDK12, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 12.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 12 (CDK12) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK12 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDK12 is also called Cdc2-related protein
kinase 7 (CRK7) or Cdc2-related kinase
arginine/serine-rich (CrkRS). It is a unique CDK that
contains an arginine/serine-rich (RS) domain, which is
predominantly found in splicing factors. CDK12 is
widely expressed in tissues. It interacts with cyclins
L1 and L2, and plays roles in regulating transcription
and alternative splicing.
Length = 302
Score = 27.4 bits (61), Expect = 3.5
Identities = 18/61 (29%), Positives = 28/61 (45%), Gaps = 6/61 (9%)
Query: 1 MGDRIGKGHFGTVYNGNWHGEVAVKVLDVDYLDDEKTWEAFKL----EVTTFRKTRHENL 56
+ +IG+G +G VY + L LD+EK E F + E+ R+ H N+
Sbjct: 11 IIGQIGEGTYGQVYKARDKDTGELVALKKVRLDNEK--EGFPITAIREIKILRQLNHRNI 68
Query: 57 V 57
V
Sbjct: 69 V 69
>gnl|CDD|173754 cd07865, STKc_CDK9, Catalytic domain of the Serine/Threonine
Kinase, Cyclin-Dependent protein Kinase 9.
Serine/Threonine Kinases (STKs), Cyclin-Dependent
protein Kinase 9 (CDK9) subfamily, catalytic (c)
domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The CDK9 subfamily is
part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. CDKs belong to a large
family of STKs that are regulated by their cognate
cyclins. Together, they are involved in the control of
cell-cycle progression, transcription, and neuronal
function. CDK9 together with a cyclin partner (cyclin
T1, T2a, T2b, or K) is the main component of distinct
positive transcription elongation factors (P-TEFb),
which function as Ser2 C-terminal domain kinases of RNA
polymerase II. P-TEFb participates in multiple steps of
gene expression including transcription elongation,
mRNA synthesis, processing, export, and translation. It
also plays a role in mediating cytokine induced
transcription networks such as IL6-induced STAT3
signaling. In addition, the CDK9/cyclin T2a complex
promotes muscle differentiation and enhances the
function of some myogenic regulatory factors.
Length = 310
Score = 27.3 bits (61), Expect = 3.6
Identities = 21/72 (29%), Positives = 35/72 (48%), Gaps = 14/72 (19%)
Query: 4 RIGKGHFGTVY---NGNWHGEVAVK-VLDVDYLDDEKTWEAFKL----EVTTFRKTRHEN 55
+IG+G FG V+ + VA+K VL +++EK E F + E+ + +HEN
Sbjct: 19 KIGQGTFGEVFKARHKKTKQIVALKKVL----MENEK--EGFPITALREIKILQLLKHEN 72
Query: 56 LVLFMGACMKPP 67
+V + C
Sbjct: 73 VVNLIEICRTKA 84
>gnl|CDD|133192 cd05061, PTKc_InsR, Catalytic domain of the Protein Tyrosine
Kinase, Insulin Receptor. Protein Tyrosine Kinase (PTK)
family; Insulin Receptor (InsR); catalytic (c) domain.
The PTKc family is part of a larger superfamily that
includes the catalytic domains of other kinases such as
protein serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. InsR is a
receptor tyr kinase (RTK) that is composed of two
alphabeta heterodimers. Binding of the insulin ligand to
the extracellular alpha subunit activates the
intracellular tyr kinase domain of the transmembrane
beta subunit. Receptor activation leads to
autophosphorylation, stimulating downstream kinase
activities, which initiate signaling cascades and
biological function. InsR signaling plays an important
role in many cellular processes including glucose
homeostasis, glycogen synthesis, lipid and protein
metabolism, ion and amino acid transport, cell cycle and
proliferation, cell differentiation, gene transcription,
and nitric oxide synthesis. Insulin resistance, caused
by abnormalities in InsR signaling, has been described
in diabetes, hypertension, cardiovascular disease,
metabolic syndrome, heart failure, and female
infertility.
Length = 288
Score = 27.2 bits (60), Expect = 3.7
Identities = 8/27 (29%), Positives = 15/27 (55%)
Query: 106 QDVLMKCWSYKPSDRPDFITLMKSLEK 132
D++ CW + P RP F+ ++ L+
Sbjct: 251 TDLMRMCWQFNPKMRPTFLEIVNLLKD 277
>gnl|CDD|173638 cd05065, PTKc_EphR_B, Catalytic domain of the Protein Tyrosine
Kinases, Class EphB Ephrin Receptors. Protein Tyrosine
Kinase (PTK) family; Ephrin Receptor (EphR) subfamily;
class EphB receptors; catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes
the catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. EphRs
comprise the largest subfamily of receptor tyr kinases
(RTKs). Class EphB receptors bind to transmembrane
ephrin-B ligands. There are six vertebrate EhpB
receptors (EphB1-6), which display promiscuous
interactions with three ephrin-B ligands. One exception
is EphB2, which also interacts with ephrin A5. EphRs
contain an ephrin-binding domain and two fibronectin
repeats extracellularly, a transmembrane segment, and a
cytoplasmic tyr kinase domain. Binding of the ephrin
ligand to EphR requires cell-cell contact since both
are anchored to the plasma membrane. The resulting
downstream signals occur bidirectionally in both
EphR-expressing cells (forward signaling) and
ephrin-expressing cells (reverse signaling).
Ephrin/EphR interaction mainly results in cell-cell
repulsion or adhesion. EphBRs play important roles in
synapse formation and plasticity, spine morphogenesis,
axon guidance, and angiogenesis. In the intestinal
epithelium, EphBRs are Wnt signaling target genes that
control cell compartmentalization. They function as
suppressors of color cancer progression.
Length = 269
Score = 27.1 bits (60), Expect = 3.7
Identities = 20/75 (26%), Positives = 30/75 (40%), Gaps = 8/75 (10%)
Query: 5 IGKGHFGTVYNGNW------HGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVL 58
IG G FG V G VA+K L Y + ++ F E + + H N++
Sbjct: 12 IGAGEFGEVCRGRLKLPGKREIFVAIKTLKSGYTEKQR--RDFLSEASIMGQFDHPNIIH 69
Query: 59 FMGACMKPPHLAIVT 73
G K + I+T
Sbjct: 70 LEGVVTKSRPVMIIT 84
>gnl|CDD|173652 cd05100, PTKc_FGFR3, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 3. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 3 (FGFR3); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR3 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. Many FGFR3 splice
variants have been reported with the IIIb and IIIc
isoforms being the predominant forms. FGFR3 IIIc is the
isoform expressed in chondrocytes, the cells affected in
dwarfism, while IIIb is expressed in epithelial cells.
FGFR3 ligands include FGF1, FGF2, FGF4, FGF8, FGF9, and
FGF23. It is a negative regulator of long bone growth.
In the cochlear duct and in the lens, FGFR3 is involved
in differentiation while it appears to have a role in
cell proliferation in epithelial cells. Germline
mutations in FGFR3 are associated with skeletal
disorders including several forms of dwarfism. Some
missense mutations are associated with multiple myeloma
and carcinomas of the bladder and cervix. Overexpression
of FGFR3 is found in thyroid carcinoma.
Length = 334
Score = 26.9 bits (59), Expect = 4.4
Identities = 9/26 (34%), Positives = 17/26 (65%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKL 133
++ +CW PS RP F L++ L+++
Sbjct: 268 IMRECWHAVPSQRPTFKQLVEDLDRV 293
>gnl|CDD|132947 cd06616, PKc_MKK4, Catalytic domain of the dual-specificity
Protein Kinase, MAP kinase kinase 4. Protein kinases
(PKs), MAP kinase kinase 4 (MKK4) subfamily, catalytic
(c) domain. PKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine or
tyrosine residues on protein substrates. The MKK4
subfamily is part of a larger superfamily that includes
the catalytic domains of other protein serine/threonine
kinases, protein tyrosine kinases, RIO kinases,
aminoglycoside phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. The mitogen-activated
protein (MAP) kinase signaling pathways are important
mediators of cellular responses to extracellular
signals. The pathways involve a triple kinase core
cascade comprising of the MAP kinase (MAPK), which is
phosphorylated and activated by a MAPK kinase (MAPKK or
MKK), which itself is phosphorylated and activated by a
MAPK kinase kinase (MAPKKK or MKKK). MKK4 is a
dual-specificity PK that phosphorylates and activates
the downstream targets, c-Jun N-terminal kinase (JNK)
and p38 MAPK, on specific threonine and tyrosine
residues. JNK and p38 are collectively known as
stress-activated MAPKs, as they are activated in
response to a variety of environmental stresses and
pro-inflammatory cytokines. Their activation is
associated with the induction of cell death. Mice
deficient in MKK4 die during embryogenesis and display
anemia, severe liver hemorrhage, and abnormal
hepatogenesis. MKK4 may also play roles in the immune
system and in cardiac hypertrophy. It plays a major
role in cancer as a tumor and metastasis suppressor.
Under certain conditions, MKK4 is pro-oncogenic.
Length = 288
Score = 26.9 bits (60), Expect = 4.4
Identities = 19/63 (30%), Positives = 29/63 (46%), Gaps = 8/63 (12%)
Query: 5 IGKGHFGTVYNGNWHGE----VAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRH-ENLVLF 59
IG+G FGTV N H +AVK + DEK + +++ ++ +V F
Sbjct: 12 IGRGAFGTV-NKMLHKPSGTIMAVK--RIRSTVDEKEQKRLLMDLDVVMRSSDCPYIVKF 68
Query: 60 MGA 62
GA
Sbjct: 69 YGA 71
>gnl|CDD|173757 cd08217, STKc_Nek2, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene
A-related kinase 2. Serine/Threonine Kinases (STKs),
Never In Mitosis gene A (NIMA)-related kinase 2 (Nek2)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek2 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. The Nek2 subfamily includes
Aspergillus nidulans NIMA kinase, the founding member
of the Nek family, which was identified in a screen for
cell cycle mutants prevented from entering mitosis.
NIMA is essential for mitotic entry and progression
through mitosis, and its degradation is essential for
mitotic exit. NIMA is involved in nuclear membrane
fission. Vertebrate Nek2 is a cell cycle-regulated STK,
localized in centrosomes and kinetochores, that
regulates centrosome splitting at the G2/M phase. It
also interacts with other mitotic kinases such as
Polo-like kinase 1 and may play a role in spindle
checkpoint. An increase in the expression of the human
NEK2 gene is strongly associated with the progression
of non-Hodgkin lymphoma.
Length = 265
Score = 26.8 bits (60), Expect = 4.6
Identities = 19/61 (31%), Positives = 28/61 (45%), Gaps = 10/61 (16%)
Query: 3 DRIGKGHFGTVY------NGNWHGEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENL 56
+ IGKG FGTV +G + K +D + EK + EV R+ +H N+
Sbjct: 6 ETIGKGSFGTVRKVRRKSDGK---ILVWKEIDYGNM-TEKEKQQLVSEVNILRELKHPNI 61
Query: 57 V 57
V
Sbjct: 62 V 62
>gnl|CDD|133233 cd05102, PTKc_VEGFR3, Catalytic domain of the Protein Tyrosine
Kinase, Vascular Endothelial Growth Factor Receptor 3.
Protein Tyrosine Kinase (PTK) family; Vascular
Endothelial Growth Factor Receptor 3 (VEGFR3); catalytic
(c) domain. The PTKc family is part of a larger
superfamily that includes the catalytic domains of other
kinases such as protein serine/threonine kinases, RIO
kinases, and phosphoinositide 3-kinase (PI3K). PTKs
catalyze the transfer of the gamma-phosphoryl group from
ATP to tyrosine (tyr) residues in protein substrates.
VEGFR3 (or Flt4) is a member of the VEGFR subfamily of
proteins, which are receptor tyr kinases (RTKs)
containing an extracellular ligand-binding region with
seven immunoglobulin (Ig)-like domains, a transmembrane
segment, and an intracellular catalytic domain. In
VEGFR3, the fifth Ig-like domain is replaced by a
disulfide bridge. The binding of VEGFRs to their
ligands, the VEGFs, leads to receptor dimerization,
activation, and intracellular signaling. VEGFR3
preferentially binds the ligands VEGFC and VEGFD. VEGFR3
is essential for lymphatic endothelial cell (EC)
development and function. It has been shown to regulate
adaptive immunity during corneal transplantation. VEGFR3
is upregulated on blood vascular ECs in pathological
conditions such as vascular tumors and the periphery of
solid tumors. It plays a role in cancer progression and
lymph node metastasis. Missense mutations in the VEGFR3
gene are associated with primary human lymphedema.
Length = 338
Score = 26.9 bits (59), Expect = 4.6
Identities = 9/30 (30%), Positives = 17/30 (56%)
Query: 108 VLMKCWSYKPSDRPDFITLMKSLEKLPKKR 137
+++ CW P +RP F L++ L L ++
Sbjct: 309 IMLACWQGDPKERPTFSALVEILGDLLQEN 338
Score = 26.1 bits (57), Expect = 8.9
Identities = 25/82 (30%), Positives = 35/82 (42%), Gaps = 11/82 (13%)
Query: 1 MGDRIGKGHFGTVYNGNWHG--------EVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTR 52
+G +G G FG V + G VAVK+L E +L++
Sbjct: 11 LGKVLGHGAFGKVVEASAFGIDKKSSCNTVAVKMLKEGATASEHKALMSELKIL-IHIGN 69
Query: 53 HENLVLFMGACMKP--PHLAIV 72
H N+V +GAC KP P + IV
Sbjct: 70 HLNVVNLLGACTKPNGPLMVIV 91
>gnl|CDD|238865 cd01827, sialate_O-acetylesterase_like1, sialate
O-acetylesterase_like family of the SGNH hydrolases, a
diverse family of lipases and esterases. The tertiary
fold of the enzyme is substantially different from that
of the alpha/beta hydrolase family and unique among all
known hydrolases; its active site closely resembles the
Ser-His-Asp(Glu) triad found in other serine hydrolases.
Length = 188
Score = 26.3 bits (58), Expect = 6.8
Identities = 17/59 (28%), Positives = 26/59 (44%)
Query: 78 GHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDRPDFITLMKSLEKLPKK 136
G Y N YK A N + + + D + W YK + D+ T++ S + LP K
Sbjct: 50 GDHPYMNEERYKNALAFNPNIVIIKLGTNDAKPQNWKYKDDFKKDYETMIDSFQALPSK 108
>gnl|CDD|173680 cd05589, STKc_PKN, Catalytic domain of the Protein
Serine/Threonine Kinase, Protein Kinase N.
Serine/Threonine Kinases (STKs), Protein Kinase N (PKN)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
PKN subfamily is part of a larger superfamily that
includes the catalytic domains of other protein STKs,
protein tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and
phosphoinositide 3-kinase. PKN has a C-terminal
catalytic domain that is highly homologous to PKCs. Its
unique N-terminal regulatory region contains
antiparallel coiled-coil (ACC) domains. In mammals,
there are three PKN isoforms from different genes
(designated PKN-alpha, beta, and gamma), which show
different enzymatic properties, tissue distribution,
and varied functions. PKN can be activated by the small
GTPase Rho, and by fatty acids such as arachidonic and
linoleic acids. It is involved in many biological
processes including cytokeletal regulation, cell
adhesion, vesicle transport, glucose transport,
regulation of meiotic maturation and embryonic cell
cycles, signaling to the nucleus, and tumorigenesis.
Length = 324
Score = 26.6 bits (59), Expect = 7.2
Identities = 25/90 (27%), Positives = 33/90 (36%), Gaps = 10/90 (11%)
Query: 5 IGKGHFGTV----YNGNWHGEV-AVKVLDVDYLDDEKTWEAFKLEVTTF---RKTRHENL 56
+G+GHFG V Y GE+ A+K L + E+ E F RH L
Sbjct: 7 LGRGHFGKVLLAEYKKT--GELYAIKALKKGDIIARDEVESLMCEKRIFETANSERHPFL 64
Query: 57 VLFMGACMKPPHLAIVTSKCNGHTLYTNIH 86
V H+ V G L +IH
Sbjct: 65 VNLFACFQTEDHVCFVMEYAAGGDLMMHIH 94
>gnl|CDD|178043 PLN02423, PLN02423, phosphomannomutase.
Length = 245
Score = 26.2 bits (58), Expect = 7.6
Identities = 13/30 (43%), Positives = 19/30 (63%), Gaps = 1/30 (3%)
Query: 85 IHIYKEKFA-LNKMSTVGQQISQDVLMKCW 113
+ + +EKFA LN ++G QIS DV + W
Sbjct: 159 VSVLREKFAHLNLTYSIGGQISFDVFPQGW 188
>gnl|CDD|173770 cd08528, STKc_Nek10, Catalytic domain of the Protein
Serine/Threonine Kinase, Never In Mitosis gene A-related
kinase 10. Serine/Threonine Kinases (STKs), Never In
Mitosis gene A (NIMA)-related kinase 10 (Nek10)
subfamily, catalytic (c) domain. STKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
serine/threonine residues on protein substrates. The
Nek10 subfamily is one of a family of 11 different Neks
(Nek1-11) that are involved in cell cycle control. The
Nek family is part of a larger superfamily that includes
the catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. No function has yet been ascribed to Nek10.
The gene encoding Nek10 is a putative causative gene for
breast cancer; it is located within a breast cancer
susceptibility loci on chromosome 3p24.
Length = 269
Score = 26.3 bits (58), Expect = 7.6
Identities = 36/152 (23%), Positives = 64/152 (42%), Gaps = 32/152 (21%)
Query: 3 DRIGKGHFGTVYNGNWHGE----VAVKVLDV-------DYLDDEKTWEAFKLEVTTFRKT 51
+ +G G FG VY +A+K ++V D + +K+ EVT ++
Sbjct: 6 EHLGSGAFGCVYKVRKKNNGQNLLALKEINVHNPAFGKDKRERDKSIGDIVSEVTIIKEQ 65
Query: 52 -RHENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLM 110
RH N+V + ++ L IV G L + + KEK Q+ +++
Sbjct: 66 LRHPNIVRYYKTFLENDRLYIVMDLIEGAPLGEHFNSLKEK---------KQRFTEE--- 113
Query: 111 KCWSYKPSDRPDFITLMKSLEKLPK-KRILAR 141
+ W+ F+ ++ +L L K KRI+ R
Sbjct: 114 RIWNI-------FVQMVLALRYLHKEKRIVHR 138
>gnl|CDD|240364 PTZ00332, PTZ00332, paraflagellar rod protein; Provisional.
Length = 589
Score = 26.5 bits (58), Expect = 7.8
Identities = 21/59 (35%), Positives = 28/59 (47%), Gaps = 9/59 (15%)
Query: 90 EKFALNK-MSTVGQQISQDVLMKCWSYKPSDRPDF---ITLMKSLEKLPKKRILARSPS 144
E + L K M G ++SQ L Y+P D+P F I L K L+ L + R R S
Sbjct: 74 EAYDLAKLMRVCGLEMSQREL-----YRPEDKPQFMDIIALKKVLQDLKQNRNKTRVVS 127
>gnl|CDD|234609 PRK00068, PRK00068, hypothetical protein; Validated.
Length = 970
Score = 26.5 bits (59), Expect = 8.6
Identities = 19/77 (24%), Positives = 36/77 (46%), Gaps = 6/77 (7%)
Query: 32 LDDEKTWEAFKLEVTTFRKTRHENLVLFMGACMKPPHLAIVTSKCNGHTLYTNIHIYKEK 91
L + E+F+L ++ F + + +NL M A P + K + L T+ +Y K
Sbjct: 747 LPPDTNKESFQL-ISYFNRLKRDNLAALMSASSDPENYG----KLTVYKLPTDKTVYGPK 801
Query: 92 FALNKMSTVGQQISQDV 108
A N ++ IS+++
Sbjct: 802 LAQNAINQ-DPAISKEL 817
>gnl|CDD|173771 cd08529, STKc_FA2-like, Catalytic domain of the Protein
Serine/Threonine Kinase, Chlamydomonas reinhardtii FA2
and similar domains. Serine/Threonine Kinases (STKs),
Chlamydomonas reinhardtii FA2-like subfamily, catalytic
(c) domain. STKs catalyze the transfer of the
gamma-phosphoryl group from ATP to serine/threonine
residues on protein substrates. The Chlamydomonas
reinhardtii FA2-like subfamily belongs to the
(NIMA)-related kinase (Nek) family. The Nek family
includes seven different Chlamydomonas Neks (CNKs 1-6
and Fa2). This subfamily includes FA2 and CNK4. The Nek
family is part of a larger superfamily that includes the
catalytic domains of other protein STKs, protein
tyrosine kinases, RIO kinases, aminoglycoside
phosphotransferase, choline kinase, and phosphoinositide
3-kinase. Chlamydomonas reinhardtii FA2 was discovered
in a genetic screen for deflagellation-defective
mutants. It is essential for
basal-body/centriole-associated microtubule severing,
and plays a role in cell cycle progression. No cellular
function has yet been ascribed to CNK4.
Length = 256
Score = 25.9 bits (57), Expect = 8.7
Identities = 30/141 (21%), Positives = 55/141 (39%), Gaps = 25/141 (17%)
Query: 4 RIGKGHFGTVYNG--NWHGEV-AVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLFM 60
+IGKG FG V+ V A+K +D+ ++ + EA E K ++ +
Sbjct: 7 KIGKGSFGVVFKVVRKADKRVYAMKQIDLSKMNRREREEAID-EARVLAKLDSSYIIRYY 65
Query: 61 GACMKPPHLAIVTSKCNGHTLYTNIHIYKEKFALNKMSTVGQQISQDVLMKCWSYKPSDR 120
+ + L IV L+ + + + G+ + +D + W +
Sbjct: 66 ESFLDKGKLNIVMEYAENGDLHKLLKMQR-----------GRPLPEDQV---WRF----- 106
Query: 121 PDFITLMKSLEKLPKKRILAR 141
FI ++ L L K+IL R
Sbjct: 107 --FIQILLGLAHLHSKKILHR 125
>gnl|CDD|133230 cd05099, PTKc_FGFR4, Catalytic domain of the Protein Tyrosine
Kinase, Fibroblast Growth Factor Receptor 4. Protein
Tyrosine Kinase (PTK) family; Fibroblast Growth Factor
Receptor 4 (FGFR4); catalytic (c) domain. The PTKc
family is part of a larger superfamily that includes the
catalytic domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. FGFR4 is
part of the FGFR subfamily, which are receptor tyr
kinases (RTKs) containing an extracellular
ligand-binding region with three immunoglobulin-like
domains, a transmembrane segment, and an intracellular
catalytic domain. The binding of FGFRs to their ligands,
the FGFs, results in receptor dimerization and
activation, and intracellular signaling. The binding of
FGFs to FGFRs is promiscuous, in that a receptor may be
activated by several ligands and a ligand may bind to
more that one type of receptor. Unlike other FGFRs,
there is only one splice form of FGFR4. It binds FGF1,
FGF2, FGF6, FGF19, and FGF23. FGF19 is a selective
ligand for FGFR4. Although disruption of FGFR4 in mice
causes no obvious phenotype, in vivo inhibition of FGFR4
in cultured skeletal muscle cells resulted in an arrest
of muscle progenitor differentiation. FGF6 and FGFR4 are
uniquely expressed in myofibers and satellite cells.
FGF6/FGFR4 signaling appears to play a key role in the
regulation of muscle regeneration. A polymorphism in
FGFR4 is found in head and neck squamous cell carcinoma.
Length = 314
Score = 26.1 bits (57), Expect = 9.0
Identities = 11/26 (42%), Positives = 18/26 (69%), Gaps = 1/26 (3%)
Query: 109 LMK-CWSYKPSDRPDFITLMKSLEKL 133
LM+ CW P+ RP F L+++L+K+
Sbjct: 268 LMRECWHAVPTQRPTFKQLVEALDKV 293
>gnl|CDD|173646 cd05087, PTKc_Aatyk1_Aatyk3, Catalytic domain of the Protein
Tyrosine Kinases, Apoptosis-associated tyrosine kinases
1 and 3. Protein Tyrosine Kinase (PTK) family;
Apoptosis-associated tyrosine kinase 1 (Aatyk1) and
Aatyk3; catalytic (c) domain. The PTKc family is part
of a larger superfamily that includes the catalytic
domains of other kinases such as protein
serine/threonine kinases, RIO kinases, and
phosphoinositide 3-kinase (PI3K). PTKs catalyze the
transfer of the gamma-phosphoryl group from ATP to
tyrosine (tyr) residues in protein substrates. Aatyk1
and Aatyk3 are members of the Aatyk subfamily of
proteins. Aatyk3 is a receptor kinase containing a
transmembrane segment and a long C-terminal cytoplasmic
tail with a catalytic domain. Aatyk1 has a similar
domain arrangement but without the transmembrane
segment and is thus, a cytoplasmic (or nonreceptor)
kinase. The expression of Aatyk1 (also referred simply
as Aatyk) is upregulated during growth arrest and
apoptosis in myeloid cells. Aatyk1 has been implicated
in neural differentiation, and is a regulator of the
Na-K-2Cl cotransporter, a membrane protein involved in
cell proliferation and survival, epithelial transport,
and blood pressure control. The function of Aatyk3 is
still unknown.
Length = 269
Score = 26.1 bits (57), Expect = 10.0
Identities = 23/74 (31%), Positives = 34/74 (45%), Gaps = 8/74 (10%)
Query: 5 IGKGHFGTVYNGNWH-----GEVAVKVLDVDYLDDEKTWEAFKLEVTTFRKTRHENLVLF 59
IG G FG V G + +V VK L V E+ F E +R +H NL+
Sbjct: 3 IGNGWFGKVILGEVNSGYTPAQVVVKELRVSASVQEQM--KFLEEAQPYRSLQHSNLLQC 60
Query: 60 MGACMK-PPHLAIV 72
+G C + P+L ++
Sbjct: 61 LGQCTEVTPYLLVM 74
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.320 0.135 0.417
Gapped
Lambda K H
0.267 0.0807 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 7,803,159
Number of extensions: 668058
Number of successful extensions: 864
Number of sequences better than 10.0: 1
Number of HSP's gapped: 797
Number of HSP's successfully gapped: 210
Length of query: 157
Length of database: 10,937,602
Length adjustment: 89
Effective length of query: 68
Effective length of database: 6,990,096
Effective search space: 475326528
Effective search space used: 475326528
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.8 bits)
S2: 55 (24.8 bits)